Peter’s got to try to convince the Fringe team that he really is who he says he is, which is difficult since no one has any memories of him, which they’d probably be pretty excited about if they knew what was going on. Plus they’re trying to track down another shapeshifter, which has killed another couple of people in an attempt to track down a former Massive Dynamic scientist. She/he/it or whatever needs the scientist, Truss, to stabilize her fluctuating skin, which he agrees to do under the misconception that this person is actually a cancer patient who was treated with cell replication therapy based on old work he did for Massive Dynamic. Peter helps them by hacking the shapeshifter 2.0 device they have (after earning a shot based on his knowledge of the old shapeshifters), and they track down the shapeshifter and save the scientist. The shapeshifter gets away, though. I mean, not at first. At first the Fringe team forgets that the last person to see the shapeshifter ALWAYS turns out to have actually been the shapeshifter, even if there really wasn’t enough time for her to change bodies and dispose of the other body.
Anyway, after looking into Peter’s eyes, Walter knows that Peter is his son — or at least an iteration of his son from yet another universe — but the guilt he’s carried since both young Peters died (along with the anger at acting Massive Dynamic CEO and Olivia’s adopted mommy Nina Sharp, who he blames for the second Peter’s death) means that he doesn’t believe he deserves a second chance (or, really, a third chance) with Peter and so ditches his son. Maybe he can try again with Olivia, who’s confused by Lincoln Lee rejecting her advances — and also unable to explain why, if Peter’s a stranger, he’s been popping up in her dreams. You know, apart from being a fox, amirite?Daniel is a writer in Newfoundland with a wife and a daughter. Don’t you forget about him. He’ll be along, dancing, you know it, baby. Follow him on Twitter (@DanMacEachern) or email him at email@example.com.