The Devil's Own (1997)

A thriller about an IRA gunman who draws an American family into the crossfire of terrorism. Frankie McGuire is one of the IRA's deadliest assassins. But when he is sent to the U.S. to buy weapons, Frankie is housed with the family of Tom O'Meara, a New York cop who knows nothing about Frankie's real identity. Their surprising friendship, and Tom's growing suspicions, force Frankie to choose between the promise of peace or a lifetime of murder.