Four months after the events of Turnabout Substitution, Apollo finds himself defending an enigmatic shop owner accused of arson.

Meanwhile, Justice, a terrorist organization seeking to change a corrupt judicial system through violent means, has claimed its twelvth victim.

Desperate for clues, the police are left with no choice but to release a convicted murderer Apollo knows only too well from prison, hoping he will give them the information they need on Justice.

When those two stories intersect, the case soon takes a turn for the tragic, uncovering dark secrets from the past and leaving a permanent mark in the history of the courts.

The time for Revolution has come.

[Taken from Ace Attorney Online's forum topic of Turnabout Revolution.]