The 26-year-old star plays a young and idealistic FBI agent named Nate Foster who infiltrates a white supremacist group in order to foil a radical right-wing terrorist group's attempt to make a dirty bomb, reported Aceshowbiz.
In the trailer, Foster is recruited by a senior agent named Angela Zampino (Toni Collette) and asked to go undercover as a neo-Nazi group's follower.
In several scenes Foster is seen willing to shave his head, get a tattoo on his body and spend all his time with the white supremacist group.
"Imperium" also stars Tracy Letts, Nestor Carbonell, Burn Gorman, Set Numrich and Sam Trammell. The film will release in US theaters on August 19.