Jenny turns the tables as she initiates the breakup with Adam, but Adam later meets April and they get along. Nick changes his destiny by covering the more upbeat "Jessie's Girl", followed by a "preview version" of "Let's Get It Started". When the repairman later informs Jacob that some nuclear chemical was the key to their time travel, Jacob realizes it was the "Chernobly", an illegal Russian energy drink. The guys rescue Lou, who was beaten up without his friends again, from falling off the rooftop. They go to Blaine's cabin to search for the drink, during which Lou finds and seduces Kelly. The guys realize that Lou is actually Jacob's father. After Lou finally punches Blaine, they retrieve the Chernobly and return to the hot tub where they create a vortex. Jacob and Nick get in the tub but Lou decides to stay in 1986, admitting he had indeed attempted suicide before. Adam volunteers to stay with Lou, but is thrown into the vortex.