Four friends from the rough side of town grow apart when two are consumed by a life of crime, and the other two become FBI agents sent deep undercover - to bring down those childhood friends.

Ex-gang member John Henry is a quiet man with a violent past. When two immigrant kids on the run from his former South Los Angeles gang leader stumble into his life, John is forced to reconcile with his past in order to try and give them a future.

North America has been divided into four main quadrants. A power-hungry corporation has taken over the conventional prison system and made criminals the new law enforcers. The owner of that corporation, nanoscientist Eion Prescott, created a nano-virus called Onyx. Which is distributed through deadly watches to criminals. First, infecting them. Then, forcing them into eliminating each other for freedom. Who can topple the corporation's entire system from within?

Two years after choosing not to kill the man who killed his son, former police sergeant Leo Barnes has become head of security for Senator Charlene Roan, the front runner in the next Presidential election due to her vow to eliminate the Purge. On the night of what should be the final Purge, a betrayal from within the government forces Barnes and Roan out onto the street where they must fight to survive the night.