What's all this about "Two rival bounty hunters are after the same killer, but find they have to join together to fight off his gang"?
I guess someone was watching another film. This one's about an embittered widower who takes up bounty hunting as he searches for the man who ran off with his wife and then deserted her. "The same killer" is a young outlaw who's got it together with a saloon girl who tags along after Clint Walker has snatched him from a rough township. He's got no gang, though there is a bunch of roughnecks who want to relieve Walker of his prisoner.
There are some similarities to "The Ride Back", which treats better the relationship between captor and captive, and to "The Bravados", both of which I prefer. The changes in the relationships between the three members of Walker's party are unconvincing if not unexpected, and the ending is a bit of an anticlimax.