I'm in the Water. I'M in the Water. Oh, God, What's Going on With Peter?

"I got hired by aliens, huh? Great. God, I'd love to talk to his wife," he says of Echo's ex-husband. "He was my unicorn. One night aliens took his penis and gave him a robot dick." He adds: "Can someone use their hand to jerk me off?" The show airs on Sunday at 10 p.m. ET/PT in the U.S.