A land mine is stolen from a U.S. atomic testing lab in the Nevada desert. Steve hops on the next train out of the nearest town, believing the thief is escaping on board the Snowbird.
Steve is send back to Paris, this time serving as bodyguard to a young French woman who was witness to a murder, until he can turn her over to the police.
Steve takes a train to Mexico in pursuit of killers who have discovered the whereabouts of Hapsburg art treasures stolen by the Nazis.
Steve travels to Macao to learn who is spreading counterfeit money through the area.
