Three promo images from episode 20 of Terminator: The Sarah Connor Chronicles, “To the Lightouse”. In the episode, Sarah decides to stash John with Charley Dixon, the only man she can trust, while Derek and Cameron attempt to work together. On the bad guy end, someone’s effort to “compromise” John Henry makes Catherine Weaver’s life a little bit more complicated. For a killing machine, that’s saying something. I’m betting Ellison is responsible, since it’s about time he made himself useful on the show again.