Terminator Genisys, the latest installment of the humans vs. robots saga, riffs heavily on elements from the first two James Cameron-helmed movies in the series and largely (and wisely) ignores the third and fourth movies. It opens with humanity's defeat of Skynet in the post-apocalyptic future, the discovery of the malevolent A.I.'s last-ditch attempt to rewrite history, and mankind's savior John Connor (Joseph Clarke) sending his second-in-command and father-to-be Kyle Reese (Jai Courtney) back in time to save his mother, Sarah Connor (Emilia Clarke) from a cyborg hitman, procreate with her, and ensure the course of future events. That familiar set-up takes a left turn when an unexpected event lands Kyle in an alternate timeline in which multiple Terminators have been sent throughout Sarah's timeline, including an old-school T-800 model (Arnold Schwarzenegger) reprogrammed by an unknown source and sent to protect her. Reese seems largely redundant at this point, and his mission is skewed by the altered history.