Li Shiqing dreamed that the No. 45 bus she was riding exploded as she walked towards the cross-river bridge. She was also frightened awake by the explosion.After waking up, she found that her experience on the bus was exactly the same as in her dream. After many failed attempts to prevent the explosion, she was convinced that she had entered a time loop.

At the same time, Xiao Heyun, who was forcibly dragged out of the car during the sixth time loop, also entered the loop with Li Shiqing.Two ordinary young people experienced life and death challenges in repeated cycles, achieved self-growth, and learned the stories behind the passengers of different identities on the No. 45 bus.

In the end, with the joint efforts of the two and the police, the truth of the explosion was finally found.Justice will eventually come, just as the names of the two people foretell, when the sky is clear and the cranes are flying over the clouds, poetry will rise to the clear and open sky.