I hate to admit this it but I don't understand exactly wtf happened at the end of that season finale. Ok I get that John Conner jumped into the future with Weaver and Derick did not recognize him, meaning that what they did must have changed the future somehow. But that still leaves a lot of questions about Weaver and John Henry and that female voice saying "I Love you" at the end. Why did Sarah back out of the time bubble? Why did John not back out of it? What was the deal with that metal snake-like robot that absorbed Weaver or was absorbed by Weaver? I could go on...
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