bkoganbing Johnny Mack Brown is in the title role of Chip Of The Flying U and he's foreman of that particular spread running it for Forrest Taylor. But soon he may have two bosses as Taylor's much younger half sister is coming to town.Doris Weston is the sister and she and Brown don't really hit off, she kind of likes young Bob Baker who has a song for all occasions.But romance is hardly the main thing Brown has on his mind. He's been fitted out for a frame of a bank robbery. He gets out of that easily enough but the villains have a scheme that involves more than just a bank robbery.Fuzzy Knight is the sidekick and cook at the Taylor/Weston ranch and he always has a comic song or two himself. He's also trying to master a rope trick that keeps backfiring on him.Enough action for any front row kid in 1939 or today.