Hoping to increase its box-office allure by adopting the title of a popular song, Deep in the Heart of Texas (clap!clap!clap!clap!) was the first Johnny Mack Brown western of the 1942-43 season.
A girl reporter is trying to tack down the lady-in-the-title, as a key witness in a graft trial, which involves three murder and that many failed attempts.
It is the Christmas Holidays and reformed thief, Boston Blackie goes to Castle Theater to pick up players who will perform for prisoners that are still in prison.
In this western, a ranch foreman and the bosses son go to a saloon to slake their thirst and find themselves in the midst of a battle started by the feisty saloon owner's wicked ex-husband who loots the safe in the ensuing scuffle.