pop idol Marie defeated her cousin and fellow Squid Sister, Callie. Having drifted apart in the months following the event, Marie worries that Callie was negatively affected by the result. After leaving Inkopolis to see her parents, Marie returns home to discover that the Great Zapfish that powers the city has gone missing, as has Callie. Cap'n Cuttlefish, the captain of the New Squidbeak Splatoon, and his understudy Agent 3 have traveled elsewhere. Fearing that the Octarians are once more involved, Marie assumes her role as Agent 2 of the Squidbeak Splatoon and recruits an Inkling, in lieu of Cuttlefish, from Inkopolis Square