Una familia americana, compuesta por el doctor Ben MacKenna, su mujer y su hijo Hank, está pasando unas vacaciones en Marruecos. Tras la muerte de un espía en brazos de Ben, mientras visitaban el mercado de Marrakech, el matrimonio descubre que su hijo ha sido secuestrado. Sin saber en quién confiar, los MacKenna se ven envueltos en una angustiosa pesadilla que tiene que ver con una operación de espionaje internacional.
When a cold medicine causes Sach to be able to smell diamonds, he and the rest of the Bowery Boys are induced by a diamond dealer to accompany him to Darkest Africa in search of a legendary cache of them.
The Randolph family have a tradition of working in the British colonial service. Clive comes home from a mission in the Gold Coast of Africa accompanied by his wife Helen. He discovers his younger brother John, is not keen on following in his footsteps. John is then persuaded to try colonial service by his grandfather. He is accompanied by Clive who has been sent to investigate the source of a series of radio broadcasts that are sewing unrest throughout the world. These may be linked to Hugo Zurof, a man plotting to rule the world.
Inglaterra, siglo XIX. Tom, un niño pobre, y el príncipe Edward Tudor nacieron el mismo día, teniendo ambos un parecido asombroso. Un día Tom se cuela en los jardines del palacio y conoce al príncipe, decidiendo ambos intercambiase sus roles. Se cambian entonces las ropas, pero los guardias les descubren y expulsan al verdadero príncipe de Palacio. Nadie les cree cuando intentan contar la verdad...
Captain Bob Hayworth, his brother Lieutenant Gilroy Hayworth and Captain Derek Marbury are in a World-War 1 trench on the front-lines in France. Bob Hayworth resents Marbury greatly as the latter had married the girl, Lucy Neville, Marbury was courting in pre-war London. Ordered to go on a night patrol, the cowardly Gilroy committed suicide rather than face his fear. Bob and Derek arrange it to appear that Bob had been killed by a shell-burst, and Derek, with his face camouflaged, takes the patrol posing as Gilroy. While on patrol, Derek is hit by a shell-burst and found by the German Red Cross, who turn him over to a family of French peasants.
