Part 1: Closures and Openings

Following the events of the Star vs finale "Cleaved," Star and Marco adjust to their new world and begin contemplating the next step of their relationship and their lives. But not everything is smooth sailing. Something went wrong when Mewni & Earth merged, and everything comes to a head with the return of familiar faces, the return of a dangerous foe, and the unearthing of shocking revelations that could change everything for everyone...