Zhu Chaoyang is a top student and ranks first in exam scores. However, his personality is relatively introverted and he is not good at communicating with his classmates. Therefore, most of his classmates don't like him very much and he is even bullied by his classmates in school.Yan Liang escaped from the orphanage with the girl Pu Pu, hoping to find someone to borrow 300,000 yuan for emergency help, because Pu Pu had trouble at home.Police officer Lao Chen learned that Yan Liang left the orphanage and wanted to find Yan Liang and send him back.Yan Liang found his best friend Zhu Chaoyang, who took them in for one night because his mother was not at home.

Zhang Dongsheng worked as a mathematics teacher in the Children's Palace. Eight years ago, he left his hometown for his wife.Now, his wife wants to divorce him, and he is trying hard to keep her, but she is indifferent.Zhang Dongsheng's father-in-law and mother-in-law also didn't like him. At his wife's cousin's party, someone mentioned the beautiful scenery of Liufeng Mountain. Zhang Dongsheng's father-in-law and mother-in-law wanted to go there, so Zhang Dongsheng offered to take his father-in-law and mother-in-law there.

Zhang Dongsheng pushed his parents-in-law off the cliff on the pretext of taking pictures while climbing a mountain. This scene happened to be accidentally recorded by three children who were visiting the scenic spot, and their adventure began.Several families were trapped and led to an unpredictable future.

In the summer of 2005, a final-term parent-teacher meeting was held in No. 1 Middle School in the sweltering seaside town of Ningzhou.Zhou Chunhong and other parents were listening carefully to the class teacher's introduction to the semester. Ye Jun, who had just arrived from the unit because of his busy work, interrupted the meeting, which made Ye Jun's daughter Ye Chimin feel uneasy.

After the meeting, Zhou Chunhong was called aside by the teacher to have a heart-to-heart talk. The teacher believed that although Zhu Chaoyang had good academic performance, his personality was too introverted and hoped that parents could encourage their children to socialize more with classmates. However, Zhou Chunhong's tough attitude made the conversation awkward.

Zhu Chaoyang started his summer vacation like other middle school students.One day, the arrival of two "uninvited guests" at home broke his life.Yan Liang sneaked away from the orphanage back to Ningzhou with Pu Pu and wanted to stay at his house.

On the other side, policeman Lao Chen, who is about to retire, learns that Yan Liang sneaked out of the orphanage.Lao Chen and Yan Liang's father, Yan Wenbin, were old acquaintances. Lao Chen, who was extremely anxious, was determined to find Yan Liang.Zhu Yongping, the owner of Yongping Aquatic Products Factory, decided to take his son to the mall to buy shoes. His current wife Wang Yao also brought her daughter Zhu Jingjing to the mall to choose children's clothes.

Zhu Jingjing stepped on Zhu Chaoyang's new shoes while playing dirty. Zhu Chaoyang returned home with grievances. Yan Liang and Pu Pu noticed Zhu Chaoyang's unhappiness. With their comfort, Zhu Chaoyang temporarily forgot his worries.The three of them happily agreed to take a trip to Liufeng Mountain tomorrow.Zhu Chaoyang took Pu Pu and Yan Liang to the scenic spot where his mother Zhou Chunhong worked.

In front of the police, Zhang Dongsheng showed a guilty look and completed his performance with “relaxation and restraint.Zhang Dongsheng, who left no criminal evidence, did not expect that his murder process had already been recorded, and the three children were about to have a thrilling confrontation with him.

After much thought, the three children decided to use their own way to remind the murderer and send a warning letter to Zhang Dongsheng.They also found a secret boat in the scrap shipyard that could be used as a ”secret base% for Yan Liang and Pu Pu to temporarily stay.​

Lao Chen, who was on duty at the police station, suddenly received a call from Yan Liang. Yan Liang asked about his father's situation, but Lao Chen did not tell the truth.Lao Chen followed the phone clues to find the Children's Palace and tried to catch Yan Liang. The two almost played a game of cat and mouse.

After a confusing chase, Lao Chen finally caught Yan Liang. While the two were arguing, the Children's Palace was noisy and someone fell from the building.

Zhu Chaoyang took advantage of Zhang Dongsheng's inattention and secretly tucked the warning letter into the test paper and left in a hurry.On the other side, Pupu took Zhu Jingjing to the utility room on the fifth floor and persuaded her to stop bullying others. Zhu Jingjing was confused until she caught a glimpse of Zhu Chaoyang. She insisted that Pupu and Zhu Chaoyang were working together to bully her.

Zhu Jingjing took a bite of Pu Pu emotionally and climbed onto the window sill to shout loudly.Zhu Chaoyang asked Zhu Jingjing to get down from the window sill, but Zhu Jingjing refused and slipped and fell out of the window, frightening Pupu and Zhu Chaoyang.Lao Chen at the scene dispersed the crowd, and Yan Liang took the opportunity to slip away.

The criminal police team soon arrived at the scene. After investigating the scene, Ye Jun locked the grocery room where the fall occurred.The forensic doctor extracted a blood sample from Zhu Jingjing's mouth, and Ye Jun asked the team to do their best to investigate all clues.

After the three of them met, Yan Liang asked them what happened at the scene. Pupu explained that Zhu Jingjing fell by herself and had nothing to do with them.The three-person conversation ended with Zhu Chaoyang not wanting his father to know that he was present.The short stay was over, and Yan Liang and Pu Pu were ready to leave Ningzhou.But at this time, danger was approaching them.

Zhang Dongsheng found Zhu Chaoyang's residence from the handwriting on the warning letter.After confirming that the children did have video evidence, he made a deal with them.Zhu Yongping took the initiative to take Zhu Chaoyang out to celebrate his birthday.Before he could sit down, he left because of Zhu Jingjing's matter.

Zhu Chaoyang had no choice but to find Yan Liang and Pu Pu to celebrate his birthday, but he was deeply moved when he found that the two friends had moved goods in exchange for a birthday gift for him.Three friends came to Zhang Dongsheng's house to complete the transaction. Zhang Dongsheng gave them a bank card and promised to transfer 30,000 yuan every week from now on, and he would be able to collect 300,000 yuan by the end of the summer vacation.

Yan Liang thought that Zhu Chaoyang and Pu Pu had encountered an accident and rushed into the police station. Lao Chen dragged Yan Liang to his house for dinner. During the dinner, Yan Liang kept asking Lao Chen about his father's situation. After questioning to no avail, he angrily prepared to leave.

Accompanied by Ye Jun, Zhu Yongping and Wang Yao watched the surveillance video of the day of the incident, and the sensitive Wang Yao noticed something strange.

Wang Yao, who was sure that Zhu Chaoyang was related to the death of his daughter, came to Zhu Chaoyang's house. Zhu Chaoyang ran away in fear.After a chase between the two, Zhou Chunhong came to protect her son and started fighting with Wang Yao.

After returning home, the mother and son found that the corridor was covered with notices posted by Wang Yao, and Zhu Chaoyang was very sad.Zhou Chunhong went to Zhu Yongping to tell Wang Yao about the good things he had done, but Zhu Yongping was absent-minded and wanted to do it perfunctorily.Zhou Chunhong was once again frustrated with Zhu Yongping's attitude.

Wang Yao learned from the police station that the DNA came from a woman, and she placed suspicion on Zhou Chunhong.She pretended to be a tourist and came to the scenic spot to understand the situation. Director Ma of the scenic spot appeared to help Zhou Chunhong. Wang Yao believed that Zhou Chunhong must have some ulterior secret.

Wang Yao went to the Liufeng Mountain Broadcasting Room to spread rumors that Zhou Chunhong and her son had committed murder, hoping to force Zhou Chunhong to tell her whereabouts that day.Director Ma and Zhou Chunhong rushed to the scene.

In order to protect her son's life from being disturbed by Wang Yao, Zhou Chunhong finally told the truth, and the scene was in an uproar.The painful Zhou Chunhong revealed her unknown secret in front of everyone.

Wang Yao lost all hope and realized that there was nothing he could do.Zhu Yongping looked at Wang Yao with regret, and he hoped to help Wang Yao completely let go of Zhu Jingjing's death.Lao Chen deceived Yan Liang into coming out in the name of Yan Wenbin being released from prison, and Yan Liang took the bait.

Yan Liang arrived at the agreed place and found that the person who came to meet was Lao Chen.Yan Liang thought he had been tricked by Lao Chen and was very angry.Lao Chen sincerely stated that he would take Yan Liang to meet his father as long as he agreed to return to the orphanage.

Zhu Yongping came to the Children's Palace to find Zhu Chaoyang.He asked Zhu Chaoyang some questions about Zhu Jingjing.During this period, Zhu Chaoyang happened to find that his father actually had another purpose for asking him out. He told a lot of good memories with Zhu Yongping, which made Zhu Yongping suddenly realize that he had not handled the relationship between the two families well at all, and now he chose an extremely stupid way to do it.Resolve conflicts between the two parties.

In Zhu Chaoyang's words, Zhu Yongping faced up to his neglect of his son for the first time and decided to make up for it.Zhu Chaoyang was wronged by his parents and came to the boat to find Yan Liang and Pu Pu to tell his feelings. The three children gathered on the beach, enjoying the unique and beautiful starry sky in summer, abandoning all the troubles and hurts brought to them by the adult world.At the same time, at the beach, the waves gradually receded, and a body appeared on the beach.

Pupu's younger brother was in critical condition and the transaction had to be accelerated. Zhu Chaoyang came to Zhang Dongsheng's home alone, but accidentally ran into Ye Jun.Ye Jun took Ye Chimin to Zhang Dongsheng's home to consult about the course. He learned that Zhu Chaoyang was here to make up lessons and praised this model student.

During this period, Ye Jun learned that Zhang Dongsheng's lover had just passed away, which made him suspicious of Zhang Dongsheng.Yan Liang told Zhu Chaoyang that he planned to confess everything to the police after Pu Pu's brother was rescued. He asked Zhu Chaoyang to help him copy a video card.

When Lao Chen retired, he told Yan Liang that he was going to take him to meet his father. Lao Chen realized that the only way to discipline this child was to win his heart, so he silently started to go through the procedures to become Yan Liang's guardian.

When Yan Liang saw his crazy father, he felt very sad and ran away again.Lao Chen found the area near their secret base through the station announcement voice on Yan Liang's phone, but happened to run into Zhang Dongsheng who followed the clues.

Lao Chen came to the little white boat to look for the child's hiding place. He happened to meet Zhang Dongsheng who was also here. After the two left after talking, Lao Chen ran into Yan Liang who was entangled with the gangsters in the fishing ground. Because of talking about Yan LiangMy father passed away unhappy.Zhang Dongsheng realized that Lao Chen's existence would speed up the revelation of the matter, and decided to complete the deal with the children immediately.

Wang Li, who was very close to his niece Zhu Jingjing, returned from overseas. Wang Li could not accept the fact that his lovely niece had left. He was very distressed to see his sister Wang Yao so haggard. Wang Li was so angry that he wanted to teach Zhu Chaoyang a lesson for his sister.

The deal between Zhang Dongsheng and the children was completed, but Wang Li also found Zhu Chaoyang and took him away. Zhang Dongsheng's plan failed again.

Yan Liang's guardian application was approved. Lao Chen followed the clues to find Xiaobai Chuan and met Wang Li who was fighting with the children.Unfortunately, Lao Chen was stabbed to the ground by Wang Li. Yan Liang was infected by Lao Chen's bravery and righteousness, and developed a feeling of admiration for this man who had been hated since childhood. He burst into tears after learning that Lao Chen had become his guardian.people.

Pupu met Zhang Dongsheng who came to the boat and begged Zhang Dongsheng to save Zhu Chaoyang.Zhang Dongsheng agreed to Pupu's request.Wang Li dragged Zhu Chaoyang to the aquatic product factory to teach him a lesson.At this critical moment, Zhang Dongsheng appeared and the two fought.In desperation, Zhang Dongsheng killed Wang Li and hid the body in a cold storage.Zhu Yongping rushed to the aquatic product factory and sent Zhu Chaoyang to the hospital.

Zhu Chaoyang woke up in the hospital, and there was a long conversation between father and son. Zhu Yongping expressed his apology and heartache to his son.Zhu Yongping didn't want Wang Li's incident to irritate Wang Yao again, so he begged Zhu Chaoyang not to tell the police the truth about the kidnapping.A storm came and all terminals were shut down. Yan Liang and Pu Pu were unable to go to Harbin. Looking at Pu Pu who was sick, Yan Liang decided to take Pu Pu to find Zhang Dongsheng for help.

Ye Jun came to visit Zhu Chaoyang. Zhu Chaoyang followed Zhu Yongping's wish and only said that he was imprisoned in the cold storage because of his carelessness. He did not reveal anything else, which made Zhou Chunhong very angry.When Zhu Yongping returned home, he told Wang Yao that Zhu Chaoyang helped him conceal the truth, saying that he wanted her to find Wang Li as soon as possible and explain the situation clearly.

Lao Chen woke up in the hospital bed and told Ye Jun Wang Li's characteristics, and Ye Jun quickly launched an investigation.Yan Liang and Pu Pu were arranged by Zhang Dongsheng to live in his parents-in-law's house because the loan company came to ask for Zhang Dongsheng's money.Pupu's impression of Zhang Dongsheng has changed because of his concern for them these days.

On the other end, Zhang Dongsheng accidentally learned that they also had a copy card, which made Zhang Dongsheng very angry. He found Yan Liang and forced Yan Liang to hand over the copy card, but he discovered that there was another hidden reason about the card.Pupu fainted due to allergies and asthma. Zhang Dongsheng, who was about to call 120, hesitated when he realized that he might be exposed.

Yan Liang went to Zhu Chaoyang to question him about copying the card, and Zhu Chaoyang told him the truth that he had not copied it.Zhang Dongsheng knew that the situation was out of control and decided to eliminate all future troubles forever.Ye Jun went to Zhu Yongping's house to visit and investigate. Wang Yao insisted that she had not seen Wang Li for a long time, which aroused Ye Jun's suspicion.

Wang Yao came to the aquatic product factory because of suspicion, and Zhu Yongping also went there together.Zhang Dongsheng killed Wang Yao.Zhu Chaoyang and Yan Liang also came to the aquatic product factory.Zhu Chaoyang was intercepted and tied up by Zhang Dongsheng and pushed into the cold storage. Only then did he realize that his father had also been tied up by Zhang Dongsheng.Zhang Dongsheng pressed Zhu Chaoyang about the whereabouts of the copied card and said he would never believe them again.

Zhu Yongping took advantage of Zhang Dongsheng's opportunity to find Yan Liang and untied the rope. When he was about to rescue his son, Zhang Dongsheng returned and fought with him. Unfortunately, Zhu Yongping was stabbed to the ground.Zhu Chaoyang saw his father falling in pain in front of him.Zhang Dongsheng poured gasoline all over the floor, locked the cold storage, and set fire to destroy the corpses. At this time, a raging fire broke out in the cold storage, and Zhang Dongsheng fled.

The two people who escaped from the fire experienced a painful night and decided to capture Zhang Dongsheng.Ye Jun went to Zhang Dongsheng to ask about Zhu Chaoyang's situation, but found something strange about Zhang Dongsheng.While investigating the Liufeng Mountain surveillance, footage was discovered of both the child and Zhang Dongsheng being present.

Yan Liang wanted to see his father again, but he was so confused that he was moved by his father and changed.Zhu Chaoyang and Yan Liang General Zhang Dongsheng made an appointment to join the Youling Hao.At the critical moment, Yan Liang did not want Zhu Chaoyang to be bewitched by Zhang Dongsheng and embark on a path of no return, so he set an example and used his own life to tell Zhu Chaoyang to be a good person.

Ye Jun rescued Zhu Chaoyang, and Lao Chen also arrived in time to save Yan Liang from drowning.