The Justice League must stop the Joker's destructive plans, but the Flash's powers malfunction, trapping him in a time loop. The Reverse Flash taunts him, and it's up to the Flash, with the help of the Justice League's new recruits, to break the cycle and save Metropolis.

Lego DC Comics Super Heroes: The Flash
The Flash is trapped in a time loop, reliving the same day over and over as the Reverse-Flash manipulates the Speed Force, pushing the hero to repeatedly attempt to outsmart his foe before the cycle repeats.