"Cole appears in 2015, shocking Railly and Aaron, who had thought him dead. He and Railly find the journal of Dr. Oliver Peters, creator of the plague, which points them to 1987 Tokyo. After Cole returns to 2043, Railly tracks down Peters, who was forced to recreate the virus by the Army. He begs Railly to kill him, but she lets him go. Aaron meets the unnamed female Army member (Alisen Down), who asks him what he would do to protect Railly. In 2043, Ramse destroys Jones' research on the history of the plague and steals the drug that allows Cole to splinter. Fleeing, he encounters the Daughters, an all-female sect led by an aged Jennifer. She tells him about the Witness and says Ramse will be a good friend to them. In pursuit of Ramse, Jones' men kill Elena. Ramse returns to the temporal facility and tries to blow up the time machine, failing but killing Max. Trapped, he injects himself with the time-travel drug and splinters. Before sending Cole after Ramse, Jones warns him he must complete the mission this time as his body can only take one more jump before failing; Cole vows to kill his friend should the latter interfere. A disoriented Ramse finds himself in Tokyo, 1987."
So Ramse decides he doesn't want the timeline fixed because that would erase his son. He steals Coles shots which results in his baby momma getting killed. Then he takes a shot and goes back himself to 1987 Tokyo, and Cole follows. They act like this will be Coles last trip because he's on the verge of dying from all the time travel, and Ramses trip was one way because he had no tracker to pull him back to the future. And of course before he jumped back Ramse also met old Jennifer in the future and learn who knows what from her. Huh.
