Jim and the professor stood next to the otherworld hole in the laboratory, staring at the strange underground world.Will's cry broke the silence, and he told Mike in horror that the shadow monster and its followers were coming.Mike's heart tightened and he realized that the danger was approaching, but it seemed that it was too late.

Through the solid glass observation room, Jim and the professor saw several devil dogs climbing up with difficulty.Although the professor was frightened, he tried to remain calm and told Jim that the glass in the observation room was very strong.However, his words soon proved to be untrue.There are more and more demon dogs, and they are attacking the glass crazily, and the cracks in the glass are expanding under their claws.

The professor made a quick decision and decided to abandon the observation room.He quickly locked the door and led Jim out of the laboratory.Meanwhile, Steve, Dustin, Lucas and Max are on the trail of the demon dog.They arrived at the laboratory unknowingly, only to find that the laboratory was dark and even the security guards were missing.Steve's heart moved, and he felt that something was wrong.

Soon, the demon dogs broke through the door lock and the laboratory fell into chaos.Joyce, Bob, and Mike took Will on a run for cover, eventually meeting up with Jim and the professor.In this chaotic building, very few people survived.They united as one, searching for equipment and weapons, intending to find a way to escape.

The professor discovered through the footage in the monitoring room that although force cannot defeat these monsters, the monsters' movements can be restricted by controlling the opening and closing of the door.However, the power is cut off and they must venture to the electrical room to restore power in order to operate the door lock.As a programming master, Bob took the initiative to ask Ying to complete this task.The professor provided him with guidance through monitoring, helped him avoid monsters, and successfully connected to the power supply.

However, just when they thought they could escape, a greater danger was approaching.Dustin and Steve were at the door trying to find a way in.After the power was turned on, the door finally opened.Dustin mistakenly thought he had opened the door, but in fact a greater danger was approaching them.

Joyce quickly rushed to the door with Will and the others, insisting on waiting for Bob to leave together.However, during his escape, Bob was attacked by a pack of demon dogs.Although he fought hard, he eventually became food for the demon dogs.Jim pulled Joyce and Will out of the laboratory, crying.

Everyone finally escaped from the laboratory and met Dustin and the others.However, before Joyce could recover from Bob's death, the demon dogs quickly came here because of Will's relationship.At this time, they have been surrounded by demon dogs, and their life and death hang on a thread.

Just when they were desperate, there was a sudden sound of flesh tearing.Immediately afterwards, the door lock was opened by strong force.Eleven opened the door and reappeared in front of them.