Heyes and Curry gain passage on a train that is full of Bannerman detectives who are setting a trap for them and their gang

A saloon entertainer and a special agent suspect that Heyes and Curry's interest in a condemned robber is the same as their own; a rumored fortune in stolen buried gold.

After helping a pair of nuns whose wagon has broken down, Smith and Jones run into Harry Briscoe who claims one of the nuns is a fake who stole $30,000 from a bank she worked at.

The capture of Heyes and Curry represents pay dirt for a poor prospector and his family.

A farmer spots the two boys and alerts the sheriff, but Heyes and the Kid jumps on a train and manage to get away. On the train they meet Harry Briscoe, who's now fired from Bannerman Detectives Inc. But when the posse telegraphs ahead, Heyes quickly reinstates Harry - and the boys become his prisoners.

The sheriff doesn't buy it though, and sends a deputy along with them to make sure they get to Wyoming. Harry manages to fool the deputy into believing that the Devil's hole gang is after them, and makes the deputy the decoy, while he and his two prisoners take another route.

Soon, the Kid's newly requisitioned horse is hurt, and they have to board a train again. Unfortunally the train heads back to the town they came from, so Heyes and the Kid decide to jump off the train to wait for Harry, who thinks that the sheriff might be fooled by the same trick twice... But is Harry wrong, and will Heyes and the Kid survive until Harry can save them?