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Rusty manages to escape and, believing Deadpool to have abandoned him, joins forces with another prisoner, Cassidy's cousin The Juggernaut, to destroy the boys’ home. Unable to defeat the Juggernaut on his own, Cable joins forces with Deadpool and Domino. He remains determined to kill Rusty, claiming that the boys’ home massacre is the beginning of Rusty’s criminal career, but Deadpool is convinced that he can change Rusty’s future. The Juggernaut nearly kills them before Colossus, Negasonic Teenage Warhead and her girlfriend Aoki (Shioli Kutsuna) arrive to help and defeat the Juggernaut by shoving a power cable up his ass and throwing him into a river, where he is electrocuted.
Deadpool confronts Rusty and urges him to stop his rampage. He puts on the inhibitor collar and challenges Rusty to prove he is evil by killing him first. Rusty hesitates, but Cable shoots him anyway. Deadpool takes the bullet and dies in Rusty’s arms. His sacrifice causes Rusty to realize the error of his ways, and changes the future. Feeling responsible for Deadpool’s death, Cable uses his last time jump to return a few hours back in time and arrange for Deadpool to be wearing a token from Vanessa that ends up saving him from Cable’s bullet. Deadpool and Cable earn each other's respects, and walk off into the sunset alongside Domino, Rusty, Aoki, Negasonic Teenage Warhead, Colossus and Deadpool's cabbie Dopinder (Karam Sonny).
In a series of post-credits scenes, Negasonic Teenage Warhead repairs Cable's time-travel device, which Deadpool uses to prevent Vanessa’s death. After they are reunited, he also uses it to kill baby Hitler, his X-MEN ORIGINS: WOLVERINE counterpart and Ryan Reynolds before he signs on to GREEN LANTERN.
