A brash marine is assigned to a new post which is now under the command of his former rival. The marine falls in love with his commanding officer's fiancée and romances her away from him. The day before their wedding, the fiancée calls it off after the marine is involved with an incident in Tijuana. The fiancée leaves for Central America to join her father, who is a diplomat, and the disgraced marine quits but re-enlists as a private. Assigned to a post in Central America, the marine discovers he must rescue his rival, who has been captured by the rebels plotting to overthrow the territorial governor, her former fiancée's father.
In the American Civil War, Union forces are in retreat after their defeat in the Second Battle of Bull Run. The Pauline Cushman Players are performing for wounded soldiers at a US military hospital. Pauline, a spy who works for Allen Pinkerton, persuades Gail to become a spy for the Union cause as Operator 13.
Three men have been convicted of the same murder of the, admittedly, quite reprehensible Floyd Cooper, and sit on death row awaiting execution the following mourning. However, only one bullet could have struck the victim first, so only one of the three men is actually guilty of murder, since "the other two shot into a corps," and so must be innocent; but which two? Professor Varney's machine, a kind of lie detector, will determine who is guilty as each man tells the story of how he came to know, hate, and kill the victim.
The story opens 185 years ago when two families, cotton merchants in England and America, with branches in France and Prussia swear to stand by each other in a belief that a great business firmly established in four countries will be able to withstand even such another calamity as the Napoleonic Wars from which Europe is slowly recovering. Then many years later, along comes World War I and the years that follow, to test the businesses.
In the days leading up to the Russian Revolution, Stephen Locke (Leslie Howard), a minor British diplomat, watches rioting in the streets. Revolutionary Elena Moura (Kay Francis) shoots it out with a Cossack soldier; when she retreats onto the grounds of the consulate, the soldier follows, forcing Stephen to intervene to protect British extraterritoriality. After the Cossack leaves, Elena emerges; she and Steven are attracted to each other, but their politics clash. Elena departs.
During World War I, the commanding officer of a small British patrol in the Mesopotamian desert is shot and killed by an unseen Arab sniper, leaving the Sergeant at a loss, since he had not been told what their mission is. He decides to try to rejoin the brigade, though he does not know where they are or where he is.
Le protagoniste est Vassili Ivanovitch Tchapaïev, un commandant bolchévique de la Guerre civile russe. Le scénario est basé sur le livre éponyme de Dmitri Fourmanov. Fourmanov en réalité était commissaire politique de la division commandée par Tchapaïev. Son livre est néanmoins romancé et non pas simplement documentaire. Dans le film, Fourmanov apparaît en personne comme un des personnages principaux. L'image épique de Tchapaïev créée par Boris Babotchkine est celle d'un homme sans instruction, avec peu de conscience politique affirmée, mais qui comprit instinctivement les buts des Bolchéviks et l'art de la guerre révolutionnaire. (Le Tchapaïev historique était un homme plus complexe). Dans une scène célèbre, le commandant explique à un de ses subordonnés une attaque contre les Blancs en utilisant des pommes de terre qui symbolisaient tel ou tel groupe militaire. Parmi les personnages principaux, on trouve Petka, jeune aide-de-camp de Tchapaïev, et une jeune fille, Anka, qui est responsable de la mitrailleuse. Dans la scène finale, Tchapaïev se noie dans le fleuve Oural.
À Moscou, en 1916. Sur les conseils de sa mère, veuve, qui a vu sa fortune peu à peu se réduire comme peau de chagrin, Natacha Kovrine a consenti à se fiancer à Brioukow, un marchand de grain enrichi, nettement plus âgé qu'elle. Infirmière à l'hôpital militaire, elle y fait la connaissance du capitaine Ignatoff et ne tarde pas à partager les tendres sentiments qu'il éprouve pour elle. Apprenant que Natacha est déjà fiancée, Ignatoff fait preuve de loyauté et quitte l'hôpital. Plus tard, l'officier est victime des malversations d'une espionne au service de l'Allemagne. Accusé de trahison, son salut pourrait venir de Brioukow.
Dans la Russie tzariste du XIXe siècle, un aventurier, Orloff, s'est proclamé tsar du peuple et occupe, avec sa horde de bandits, une forteresse isolée près de la Volga. En route vers celle-ci, il sauve la vie d’un homme, Silatchoff, lors d’une tempête de neige. Arrivé à destination, il tombe instantanément amoureux de la fille du colonel, ce qui lui vaut l’inimitié durable du lieutenant Schalin, son ancien prétendant également fou d'elle. Mais une menace se prépare, celle d'une révolte de paysans conduite par Silatchoff...
During World War I, Diana "Ann" Boyce-Smith (Joan Crawford) is an English girl living on her father's estate in Kent. The estate is bought by a wealthy American, Richard Bogard (Gary Cooper), who seeks to move into his new property. Right as Bogard arrives, Ann and the house's servants find out that her father has been killed in action, but Ann projects calm and brave graciousness and moves to the guest cottage without complaint. Bogard finds her strength attractive and quickly falls in love with her.