They approach the unit, Olivia especially cautiously, because the last time she opened one, she reminds Peter, it was rigged with Semtex. He asks if she means with John Scott -- just in case there are other storage-facility explosions he's not aware of. He asks how she knows it was Semtex, and she explains that when they were trying to figure out what happened, they traced the explosive back to a munitions trader in Hong Kong. She asks why he's asking. "'Cause I didn't know it was Semtex until right now," he says. Olivia doesn't know why that's a big deal, and he says Walter's theory that he's projecting his memories onto her can't possibly be right. "You can't have memories that I've never had. I don't understand how this is happening." Given that Olivia doesn't have amnesia of everything that happened before she met Peter in whatever timeline Peter came from, I'm not sure this disproves Walter's theory the way Peter does, but whatever. Peter doesn't understand what's happening. Neither does Olivia, but she's a lot less concerned about it. "Whatever this is, whatever the cause, I told you: I'm not scared." I can't be the only person raised on Star Wars who hears "I'm not scared" and hears a raspy old voice say, "You will be. You. Will. Be." Anyway, Olivia LIKES the feeling that she's in love with Peter, so yeah, something clearly is wrong here. She's beaming again, and Peter looks constipated. So back to work! Olivia turns back to the unit, and finds the large padlock is unlatched.