Full Synopsis
Rick takes Morty and Summer to a post-apocalyptic version of Earth, where they are chased by a group of scavengers, known as Death Stalkers. Rick notices that the group is carrying a valuable rock of Isotope 322, so he and the kids join them in hope of stealing it. Summer falls in love with the Death Stalkers’ leader, while Morty is given the strength of a giant arm, which takes him in search of its previous owner’s killer.
Rick leaves and replaces the kids with androids to fool Beth. When he returns, he helps the Death Stalkers use the Isotope to power a more advanced civilization. Summer does not like how the change softens the Death Stalkers, and she decides to follow Rick and Morty back home. Before leaving, Rick steals the isotope. The experience helps the kids overcome their parents’ divorce. Summer reconciles with Jerry, and Morty realizes he must live his own life.
