: Rick later tells Morty his rage was caused by "Purgenol" in a candy bar. However, a final shot shows the bar was actually "Purgenol-free," implying the rage was entirely Morty's own. Themes and Analysis

: Rick and Morty land for ship repairs just as the "Festival" begins. Despite Rick's initial plan to just watch, Morty insists they save a "damsel in distress" named Arthricia.

: Arthricia betrays them, stealing their ship and weapons, which leaves them vulnerable to the local purgers.

: To get home, Rick calls for high-tech Iron Man-style mech suits . Before they arrive, Morty is forced to listen to a lighthouse keeper's terrible screenplay; his criticism of it leads to a fight where he snaps and kills the man.

: The episode is a direct parody of the film The Purge , which characters explicitly mention. It subverts common tropes, such as the "helpless victim" becoming a betrayer and the "peaceful society" immediately returning to violence even after the elite are overthrown.

In the ninth episode of Rick and Morty's second season, the duo ends up stranded on a planet of humanoid cat people during their annual "Festival"—a night where all crime, including murder, is legal. Plot Summary