Jonas, struggling with the consequences of his actions, seeks to break the time loop and prevent the apocalypse. He travels back to 1921, where he meets Adam, his future self, who reveals that the cycle can only be ended by accepting Michael's suicide and the ensuing events, including the nuclear meltdown in 2053. Jonas's attempts to change the past ultimately lead to more tragic consequences, solidifying the cycle and highlighting the interconnectedness of time and fate.