An American army officer, Kenneth Holbert, is after a Mexican bandit, El Zorro, who he doesn't know is his long-lost twin brother. Dorothy Holbert has a hard time figuring out which is which, especially since Romanian native Renaldo uses the same accent for both brothers.
Natty Bumppo, known as Hawk-Eye, is a frontiersman in the American wilderness. Together with his Indian friends Chingachgook and Uncas, he fights battles against nefarious white soldiers as well as the vicious Indian Magua and his cohorts.
A mysterious master criminal known as The Voice plots with his gang to sabotage the Milesburg Oil Company, but the rightful heir has a secret army of her own to protect her rights.
While on safari in an unexplored area of Africa, Trader Horn and Peru find missionary Edith Trent killed by natives. They decide to carry on her quest for her lost daughter Nina. They find her as the queen of a particularly savage tribe, and try to bring her back to civilization.
Young vivacious Billie uses her charms on influential businessman Glenn Abbott in hopes of getting her secret fiancée Gil a diplomatic appointment. Meanwhile Gil's affections meander to beautiful ingenue Kentucky, Billie's best friend.
Nancy Carroll stars in Manhattan Cocktail as Babs, a college coed who dreams of becoming a famous actress. Joining up with her campus chums Fred (Richard Arlen) and Bob (Danny O'Shea), likewise aspiring thespians, Babes heads to Broadway with stars in her eyes. The winsome threesome are quickly disillusioned by the heartless machinations of nasty producer Renov (Paul Lukas) and his harridan wife (Lilyan Tashman). Before the plot proper gets under way, the audience is regaled with a cute "mythological" prologue, featuring the same three leading actors. Manhattan Cocktail was a silent picture, except for two brief musical numbers showcasing Nancy Carroll.