Sirens awaken the No-Star students for the start of “No-Late Day,” where being tardy will get you expelled from Honnouji Academy. With Senketsu in the wash, Ryuko must fight on her own to get through the Discipline Committee’s traps and arrive on time.

Ryuko comes face to face with her father's killer, but can she contain her rage? Mako and the Elite Four look on as sh e rampages on, coming closer and closer to death. Will Satsuki or anyone else be able to stop her?