After a good-natured Irish cop is framed for a diamond robbery and murder and presumed dead in a train wreck, he gets plastic surgery and returns to expose the real killers.
In this fictionalised account of the Great Train Robbery, career criminal Paul Clifton plans an audacious crime: the robbery of a mail train carrying millions in cash.
Gang leader Tony pulls off a major diamond heist with his crew, but cop-turned-criminal Ling knows who has the loot and responds by kidnapping Tony's daughter and holding her for ransom. Unfortunately, Tony's lost the diamonds as well. As he frantically searches for his daughter and the jewels, Tony pairs with a high-kicking government agent who once worked with Ling and seeks revenge on him.