In Terminator 4 Anton Yelchin is playing the role of Kyle Reese in Terminator 4. Kyle Reese is the resistant who will be sent to the past to protect John Connor’s mother (and is actually Connor’s father…). Skynet may want to kill him, but John Connor won’t let it happen:
Who are you?
John Connor (Christian Bale) fights to rescue Kyle Reese (Anton Yelchin).
What a weird situation for John Connor: having to protect a boy who is his father in the future, er, I mean in the past… er… confused!
;-P