After the American Army shot down a UFO in 1947, generations of elite commandos were secretly trained to deal with the aliens’ feared return. However, the extra-terrestrials never came back and the elite force was disbanded. Sixty-six years after the Roswell crash, the aliens are invading Earth and only the over-the-hill retired commandos can stop them.

In Assassin’s Bullet, Slater plays Robert Diggs, a black ops agent who comes to work for Ambassador Ashdown (Hunger Games star Donald Sutherland), tracking down a vigilante assassin in Eastern Europe. The maverick hit(wo)man has been taking out high-profile targets on the U.S. hit list, and Diggs must uncover the killer’s identity before there’s an international incident. The usual game of cat and mouse ensues.