Complete story — includes the ending
Despondent over Eckland's death, Jones sends Cassie to 2020 to assassinate her younger self and prevent Project Splinter from ever beginning. There, Cassie finds the Jones of 2020 watching over her deathly ill daughter, Hannah. After she kills Jones, Cassie wakes up at the beginning of the same day, along with Cole, who has come to stop her. Eventually they discover they are trapped in a temporal loop. With help from the Jennifer of 2020, they break the loop and return to 2044. They explain to Jones that her creation of Project Splinter was fated and attempting to alter that fate caused the loop. To escape it, they saved Hannah and gave her to Jennifer's Daughters to raise, letting Jones believe she was dead so that she would start the project. They then reunite Jones with the adult Hannah. Cole tells Cassie about his feelings for her, but she rebuffs him, fearing that they stand to lose too much if she reciprocates. Ramse appears in her room, threatening to shoot her for her role in Sam's disappearance. Instead she proposes that the two of them kill the Witness; he agrees.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of 12 Monkeys episodes. HTML formatting and reference markers removed. · Content license