The film will be a prequel that will focus on the events that lead up to the very first Purge event.

A family lives an isolated existence in utter silence, for fear of an unknown threat that follows and attacks at any sound.

Optimus Prime finds his home planet, Cybertron, now a dead planet, in which he comes to find he was responsible for killing. He finds a way to bring the planet back to life, but in order to do so, he needs to find an artifact, which is on Earth.

It's been two years since Leo Barnes stopped himself from a regrettable act of revenge on Purge Night. Now serving as head of security for Senator Charlie Roan, his mission is to protect her in a run for president and survive the annual ritual...