Matt is used by an old friend in a con game.

Matt learns there is a hired killer in Dodge City, the hired killer gives Matt a challenge to find out who paid Nate Springer to kill Matt.

Ernie Stubblefield trying to put his past behind him changes his name to Earl Stafford and is traveling with a laughing gas show. Cloud Marsh tries the gas and gets laughed at by the town. Angry he and his brothers attack Stubblefield/Stafford.