Seok-jin brings Nam-joon, Jung-kook and Tae-hyung with him right after waking up, significantly earlier than the previous iterations, to help in his search for Yoon-gi. In response to this sudden change of fates, the four men are caught in a vehicular accident; Nam-joon, Jung-kook and Tae-hyung are killed while Seok-jin is seriously injured. As the loop starts again, Seok-jin realizes that he must not quickly jump in to change his friends' fates. Back to the start of the loop, Seok-jin begins planning his rescues. Seok-jin concludes that he must let Nam-joon meet the snob customer and stop the fight at the right moment, and let Nam-joon by himself while he goes to rescue Jung-kook, taking the shortest distance possible. Proceeding as planned, Seok-jin rushes to the burning building to save Yoon-gi. Upon regaining consciousness in the hospital, Yoon-gi expresses his resentment at Seok-jin for saving him from the fire. A month later, Tae-hyung is caught in the act of vandalism and evades the police by hiding in Nam-joon's pad. While spending the night at Nam-joon's, Tae-hyung wakes up from a nightmare in which he saw Ji-min. Both Nam-joon and Tae-hyung are unaware that Ji-min has been in staying in a hospital for two years. In the hospital, Ji-min meets Ho-seok who is recently confined for his narcolepsy. Ji-min confides to Ho-seok that his "clock stopped clicking at some point": he cannot say how long had he been in the hospital and how much longer must he stay. Ji-min has also been haunted by images of a tunnel and a sign pointing to an arboretum. Meanwhile, Nam-joon and Tae-hyung decide to visit Ho-seok at his job, but learns later on that he had been brought to the hospital due to his narcolepsy. At the hospital, Ho-seok overhears a group a hospital staff talking about Ji-min and learns that Ji-min had actually been forced by his parents to stay in the hospital. Episodes 9–12 Nam-joon and Tae-hyung, accompanied by Jung-kook and Yoon-gi, who was discharged a month ago, arrive at the hospital to pay Ho-seok a visit. Ho-seok learns of their arrival and invites Ji-min to join him in meeting their friends, but Ji-min refuses and asks him not to tell them that he is in the hospital. Later, Nam-joon excuses himself from the group to go back to his work. Upon exiting the hospital, Nam-joon meets Seok-jin who he thought was