After the death of a United States Senator, the idealistic Jefferson Smith is appointed as his replacement in Washington. The naive and earnest new senator soon finds himself battling political corruption.

Alice, the only relatively normal member of the eccentric Sycamore family, falls in love with Tony Kirby, but his wealthy banker father and snobbish mother strongly disapprove of the match. When the Kirbys are invited to dinner to become better acquainted with their future in-laws, things don't turn out the way Alice had hoped.

Longfellow Deeds lives in a small town, leading a small town kind of life. When a relative dies and leaves Deeds a fortune, Longfellow moves to the big city where he becomes an instant target for everyone. Deeds outwits them all until Babe Bennett comes along. When small-town boy meets big-city girl anything can, and does, happen.

At an exclusive boarding school for adolescent girls, the lives of two very different students intertwine when introverted class monitor Natalie Freeman learns of the more popular Linda Simpson's secret boyfriend.

When a confused eyewitness identifies New York City cabbie Brick Tennant as a killer, he is sentenced to death for a murder that he wasn't involved in. Though no one is willing to listen to the innocent prisoner's pleas for freedom, Brick's faithful fiancée, Mary, knows that her lover is innocent because she was with him when the crime was committed. As the scheduled execution draws ever nearer, Mary begins to investigate the murder herself.

The small-town prudes of Lynnfield are up in arms over 'The Sinner,' a sexy best-seller. They little suspect that author 'Caroline Adams' is really Theodora Lynn, scion of the town's leading family. Michael Grant, devil-may-care book jacket illustrator, penetrates Theodora's incognito and sets out to 'free her' from Lynnfield against her will. But Michael has a secret too, and gets a taste of his own medicine.

Steady, dependable Coast Guard Lieutenant Raymond "Ray" Dower and reckless aviator Thomas "Speed" Bradshaw are the closest of friends. Ray saves the life of Captain Tobias Bliss, tramp steamer skipper, in a daring rescue at sea. Speed flies the injured man back to the base hospital, where the two officers later visit him. There Ray meets Nancy Bliss, Bliss' grand-daughter, and falls in love with her. Speed meets her at a dance and urges Ray to propose before some other guy does. Ray is assigned to flood rescue duty, and Speed and Nancy start going out together and discover they are in love.

Jenny Swanson, a waitress on a college campus, is dying to visit Paris. Thanks to English professor Ronald Brooke, she manages to make her dream come true. Besides seeing the sights in the French capital she makes friends with a wealthy family there, the Brands.

Russ Matthews, a theatrical agent who is not above pulling off a hoax or two or more to further the career of his clients (and himself), and a newspaper gossip-columnist, Carol Wilson, get involved with gangsters when one of Larry's radio-program future-predicting cons gets out of hand.

A silent Western star has trouble adjusting to the coming of sound.

Standard tale of husband and wife living a party lifestyle. He works in a gambling hall and she occasionally models and sings. Because they want to start a family wife feels the need to change their situation. Situation is changed and husband gets a new job and then a promotion but is tricked into a bad business deal and wants to go back to his old life.

A young woman is torn between a wealthy suitor who wants her body and the honest young man who wants what's best for her.

G-Men in Washington break up a powerful spy ring and capture the ringleaders.

A remake of Frank Capra's Submarine (1928), Devil's Playground is a snappy Columbia "B plus" picture starring Richard Dix and Chester Morris. Submarine officers Dorgan (Dix) and Mason (Morris) battle on land for the affections of dance-hall girl Carmen (Dolores del Rio). She marries Dorgan but makes a play for Mason when her husband is on duty. The romantic rivalry is forgotten when Dorgan must rescue Mason and his crew from a sunken sub.

A hardened criminal is transformed into a responsible member of society after he undergoes plastic surgery.

Spies force former jewel thief Michael Lanyard to steal defense secrets in Washington.

Mary Gillespie is restoring the Col. Gillespie Circus to its former splendor after her father's death. With the help of her publicist boyfriend Jim, the sell-out crowds are returning to the big top. Egotistical equestrian star Senor Martinet, however, holds $60,000 of notes signed by the Colonel and due in 24 hours. When a mysterious shadowy figure is seen on the circus lot, and Martinet is murdered in the center ring during his performance, there are suspects aplenty, including Vindecco, Martinet's badly abused hunchback assistant.

A former college football hero and his college sweetheart get married. Marital turmoil ensues as her criminal law practice soars while he cannot get his career as an architect off the ground. They separate, and the man begins making extra money by singing in a nightclub. When he is unjustly accused of murder, it is up to his estranged wife to defend him in court.

The Hollywood Post's sports writer, Jimmy Jones (Charles Quigley), yearns to be a crime reporter, and thus looks for foul play on even the most routine assignments. In writing a piece about a girl's softball team, Jimmy discovers that their sponsor, Foy Harris (John Gallaudet), is a notorious racketeer who has supposedly gone straight. Jimmy suspects Foy is still up to no good. He begins hanging around the team to do a bit of snooping, and also to be near the cute new pitcher, Ann Casey (Jacqueline Wells).

After being criticized by the Citizens' League for his inability to cope with a crime wave, Police Captain Haines orders his men in the Homicide Bureau to clean up all their cases, but without violating the constitutional rights of any suspect. Detective Jim Logan is ordered to meet the incoming new-head of the Police Department lab and internal affairs, J.G. Bliss, and takes an instant dislike to her over her attitude toward criminal's rights.