Tyler Killdeere, the last Killdeere not dead or in prison, is wounded and on the run when he sees a prisoner delivery going down in the streets of a small town. He’s busily reminding himself he must not attract attention, and besides it ain’t none of his business, when a pretty widow, Kate Courtland, runs out to shield her wounded Uncle Tom, the marshal. A gunman points his rifle directly at her.
Kildeeres, mean and deadly as they are, respect women. When the dust settles, the gunman is dead. Ty lowers his guns and Kate, who knows he is an outlaw on the run, thanks him. She tells the judge 'Mister Tyler' knows all about criminals and how to deal with them.
A judge who doesn’t know Ty appoints him acting marshal until Tom Courtland is on his feet. Ty wonders why she is devilin him like this, but is thankful she doesn't give him away. As their relationship grows, and he realizes she likes him around, he feels even more wonder. How can a lady like Kate want an outlaw like him?
The Bigbees (only some of the town’s nemeses) aren’t about to let the marshal hang the big man’s son. Ty might die here on the streets from Bigbee’s guns or with a rope around his neck, if hey tumble to who he is, but he’s taken the job and he’ll play out the hand or die trying. There is no way he can leave until he’s sure Kate is safe.