The Spacetime Strategic Enforcement Unit, A.K.A. Fate Rewinders, are on the job, using time loops to save even the most doomed civilians! Chrono is all set to undertake his promotion exam as a Fate Rewinder. That means his next mission is going to be his hardest job yet by far: preventing a plane crash! But as soon as a rival Rewinder, Akaba, appears on the scene, it becomes a race for the promotion. Or will the two manage to join forces when it comes to light that something more sinister ...