3x13 - Red vs. Blue

The computer completes the teleporter and reveals its name to be Gary. Church teleports back to Blood Gulch shortly before the series begins. The moment Church is teleported away, however, another Church runs in and tells Gary to teleport him to Sidewinder instead, because he screwed everything up. Back at Blood Gulch prior to the events of episode 1, this Future Church decides to try and prevent the death of Tex, which would prevent O'Malley from escaping and causing the events leading up to The Great Doom. He finds, however, that he either has no effect, or causes the events by his presence in the first place: * Lopez's legs malfunction because Future Church, in trying to get him a larger switch, kicked dirt into the switch Sarge decided to use when building the robot. * Prior to episode 1, the Blues were under the charge of Captain Butch Flowers. Knowing Flowers would die, Future Church gives him aspirin, but Flowers dies of a heart attack due to an allergy of the medicine. Tucker, at this point in Blue armor, takes Flowers' cyan armor. * Donut, in rookie Red armor, finds the Blue Base and steals the flag because Future Church, failing to recognize him outside of pink armor, gives him directions. * Future Church attempts to prevent the death of his past self, which would stop Tex from arriving in Blood Gulch. He awakens the tank and runs through her protocols to try and prevent her from shooting him later. She refers to herself as Phyllis, and overrides her name when Church addresses her as Sheila. Future Church turns off a "friendly fire protocol," which in actuality prevents friendly fire; thus the original Church's death takes place because of Future Church. * Finding a sniper rifle on the corpse of his past self, Future Church picks it up but drops it later. Caboose finds it, and uses it to shoot Sarge. * Attempting to kill Donut to stop him from killing Tex, Future Church fails and retreats to the cave, frustrated. Caboose spots what "looks like Church," and turns on his radio. As a result, O'Malley infects him.