Hobos encounter a sadistic railway conductor that will not let anyone "ride the rails" for free.
The rebellious Thracian Spartacus, born and raised a slave, is sold to Gladiator trainer Batiatus. After weeks of being trained to kill for the arena, Spartacus turns on his owners and leads the other slaves in rebellion. As the rebels move from town to town, their numbers swell as escaped slaves join their ranks. Under the leadership of Spartacus, they make their way to southern Italy, where they will cross the sea and return to their homes.
Having fled to Mexico from the U.S. many years ago for killing his father's murderer, Martin Brady travels to Texas to broker an arms deal for his Mexican boss, strongman Governor Cipriano Castro. Brady breaks a leg and while recuperating in Texas the gun shipment is stolen. Complicating matters further the wife of local army major Colton has designs on him, and the local Texas Ranger captain makes him a generous offer to come back to the states and join his outfit. After killing a man in self-defense, Brady slips back over the border and confronts Castro who is not only unhappy that Brady has lost his gun shipment but is about to join forces with Colton to battle the local raiding Apache Indians.
Dan Evans, a small time farmer, is hired to escort Ben Wade, a dangerous outlaw, to Yuma. As Evans and Wade wait for the 3:10 train to Yuma, Wade's gang is racing to free him.
Henry Fleming is a young Union soldier in the American Civil War. During his unit's first engagement, Henry flees the battlefield in fear. When he learns that the Union actually won the battle, shame over his cowardice leads him to lie to his friend Tom and the other soldiers, saying that he had been injured in battle. However, when he learns that his unit will be leading a charge against the enemy, Henry takes the opportunity to face his fears and redeem himself.
Secret Service agents make a deal with a counterfeiting inmate to be released on early parole if he will help them recover some bogus moneymaking plates, but he plans to double-cross them.
Nick Garcos comes back from his tour of duty in World War II planning to settle down with his girlfriend, Polly Faber. He learns, however, that his father was recently beaten and burglarized by mob-connected trucker Mike Figlia, and Nick resolves to get even. He partners with prostitute Rica, and together they go after Mike, all the while getting pulled further into the local crime underworld.
After marrying an American lieutenant with whom he was assigned to work in post-war Germany, a French captain attempts to find a way to accompany her back to the States under the terms of the War Bride Act.
In 1924, stage-struck Boston blueblood Hannah Adams picks up musical star Tim O'Connor and takes him home for dinner. One thing leads to another, and when Tim's show rolls on to Chicago a new Mrs. O'Connor comes along as incompetent chorus girl. Hollywood beckons, and we follow the star careers of the O'Connor family in silents and talkies.
After two gang-related killings in "Center City," a suspect (who was framed) is arrested, released on bail...and murdered. Inspector Briggs of the FBI recruits a young agent, Gene Cordell, to go undercover in the shadowy Skid Row area (alias George Manly) as a potential victim of the same racket. Soon, Gene meets Alec Stiles, neurotic mastermind who's "building an organization along scientific lines." Stiles recruits Cordell, whose job becomes a lot more dangerous.
Kit Madden is traveling to Hollywood, where her best-selling novel is to be filmed. Aboard the train, she encounters Marines Rusty and Dink, who don't know she is the author of the famous book, and who don't think much of the ideas it proposes. She and Rusty are greatly attracted, but she doesn't know how to deal with his disdain for the book's author.
Two sailors on shore leave head out for four days of partying – only to become involved in the affairs of an aspiring singer and her precocious nephew.
During the Austrian-Prussian war, Anna Marie is a dancer who is forced to flee her country after she is accused of being a spy. She ends up in a lawless western town in Arizona, where she uses her charms and dancing skills to transform herself into "Salome" during her dance routines.
Canadian Mountie Steve Wagner captures a German Luftwaffe officer on a spy mission, who later escapes from the prison camp. To catch the spy ring, the Mounties employ a ruse so that the spies, believing Steve to be sympathetic, enlist him in their plans.