It's 1899 and the Union Pacific Express is headed north to deliver its payroll and forty-seven passengers. Suddenly the train is attacked by a host of thieving bandits! Colt Express invites you and your friends to become outlaws in the chaotic process of robbing a detailed, three-diemsional train. Each turn, players plan ahead and play Action cards to steal loot, shoot their opponents, move around the train, and elude the marshal's bullets. Will the outlaws keep their cool or will the marshal save the day and prevent the robbery? The only thing that matters is which outlaw is the richest when the train pulls into the station.