Following his breakup with Jackie, Marco moves to Mewni full time. Given a second chance to be with Star, will he finally find the courage to recognize and act on his feelings? Meanwhile, a sinister plot to upend the Butterfly Dynasty is brewing as new enemies rise. Can Star discover the threat in time to save her family?

Star can't catch a break. Weeks after the cleave, she finds her life still in chaos. Can Star find some peace and quiet to share a tender moment with Marco?