"On Your Guard" is an early sound movie with a relatively low budget, so I'll freely admit that the film has its flaws. However, despite this, the film works pretty well—even when seen 80 years later.
The Frisco Kid (Richard Talmadge) is now out of prison but he has zero interest in changing his corrupt ways. This time, he vows to be more careful but still lead a life of crime. However, when he becomes a godfather to a little girl, he changes and this softens his personality. The problem is, however, that his evil associates want him to work for them—and if he won't, they'll kill him. He has a choice—to take the easy way and be a crook or fight and be a man.
Sure, the story is a bit moralistic and predictable in spots. However, the simple story works well—much of it due to the nice acting of Richard Talmadge and also due to the nice outdoors look to the film. It really looks good despite coming from a small studio. And, if you want to see this heartwarming tale of redemption, it's free to download from archive.org. Overall it's mildly enjoyable and worth a look.