Watch Dead Man's Gulch for Free: How to Stream the Movie Online at 123Movies. . When the Pony Express disbands, riders Tennessee and Johnny head for Adobe Wells. Tennessee becomes the Deputy Marshal while Johnny joins an outlaw gang. It's not long before Tennessee catches Johny attempting murder. As Johhnny is his best friend, he gives him another chance. But to no avail as Johnny murders a man and this time Tennessee must do his duty.