The unconventional life of Dr. William Marston, the Harvard psychologist and inventor who helped invent the modern lie detector test and created Wonder Woman in 1941.

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.

Two best friends become rivals when their respective weddings are accidentally booked for the same day.