Set in 1950's Dublin, Steve Lawlor (Richard Leech) returns to Ireland to aid the Republican cause by taking part in the armed robbery of a security van in the North. The robbery is a success but Lawlor, who held the loot, disappears.Canadian photographer John Kevin (William Sylvester) arrives in Dublin expecting to meet Lawlor, but is informed by police that his friend died in a blazing car crash. The Republican gang believe Lawlor's absent passenger in the car, bookseller Danny O'Callaghan, is the traitor and has made off with the stolen money.Lawlor's Italian girlfriend, doesn't believe he died in the crash and when Kevin is attacked by a mysterious assailant in a white trenchcoat, he becomes suspicious and begins investigating the circumstances of Lawlor's death. But will he discover the real story behind his friends' death and will the Movement take their revenge on a traitor?