In 1869, a lucrative railroad mail service to the West Coast attracts the attention of a cunning gang of train robbers, with one of their own secretly working within the mail's security. A former army intelligence officer, Steve Davis, is hired to track down the gang and protect the Territorial Mail Service.

Wyoming Mail
A cunning operative is sent to infiltrate a ruthless gang of bandits terrorizing the railroad mail service in 1869, tasked with dismantling the gang from within.