Li Shi Qing wakes up on the bus again after falling asleep. Xiao He Yun says there is a bomb on the bus and when they announce there is a bomb on the bus, the bus explodes. They determine that the bomber is riding the bus with them. They decide that the rider in the back seat is the bomber and try to find out if the bomb is in his backpack. Xiao He Yun tries to get out of the loop when they manage to leave the bus at the next stop. However the bus still explodes and kills some police officers as well. Li Shi Qing says she doesn't know Xiao He Yun, but he calls her while she is being interrogated.

The police confirm residues of a bomb on the bus. They decide to further investigate everyone who had entered Bus. 45. The masked man takes He Yun and Li Shi Qing to his secret apartment where he raises cats. He believes their story and they part amicably. Still unsure about whether he would enter the loop or not, he asks the two of them to address him by his name "Lu Di" the next time they meet. Li Shi Qing and Xiao He Yun stay at a hotel room and surf the web for information about anymore passengers. Back at his home, Lu Di and his mother argue over him keeping cats as he was highly asthmatic. He shuts himself in his rooms and pens a heartfelt final letter to his parents before he is summoned by the police. Li Shi Qing and Xiao He Yun receive calls from the police soon. They speculate about how the events are going to turn out and what Lu Di would've told. The police question Lu Di and the other two arrive at the station.