The temperamental Carol Maldon leaves New York behind to take control of her father's stable, she inherited. Rick Grayton is a horse racing trainer who lucked into training a champ, the horse 'Gay Fleet'. Only nobody knows 'Gay Fleet' is any good yet. Rick has been intentionally losing so that he can buy the horse with a low-ball offer to the owner Carol. However Mercedes Bellway, a rival barn and in love with Rick, figures out his plan and tells Carol.
Retired rodeo champion Jeff McCloud agrees to mentor novice rodeo contestant Wes Merritt against the wishes of Merritt's wife who fears the dangers of this rough sport.
The "Cheaper by the Dozen" crew is back, sans Clifton Webb. Lillian is struggling to make ends meet without her husband's income, while Anne, Martha, and even Ernestine find romance.
Retired actor Jack Holt is raising Christmas trees for sale at a cost which permits every family to have one. A commercial tree company tries to drive Holt out of business. Roy saves the day, of course.
Secret Command features Pat O'Brien as a onetime foreign correspondent in the wartime employ of the FBI. Under an assumed name, O'BRIEN goes to work at a shipyard, intending to keep both eyes open for potential saboteurs. To maintain the cover, O'BRIEN is given a "wife" (Carole Landis) and two children. When O'BRIEN's brother Chester Morris shows up, he can't comprehend the charade and nearly spills the beans to the Nazi spies O'BRIEN hopes to trap. Based on the short story The Saboteurs by John and Ward Hawkins, Secret Command offers a graying but still feisty Pat O'Brien doing what he does best.
