Don Gil de Alacala (José Mojica), a swashbuckler also known as Captain Adventure, must overcome a series of difficult trials and tribulations in order to save the love of his life, Carmina (Manolita Saval), who is engaged to marry a terrible nobleman. Based upon the libretto "Don Gil de Alcala" by Manuel Penella, this classic black-and-white romance also stars Margarita Mora, Carlos Orellana and Sara García.

The Wildcat, a Robin Hood of the Spanish hills and son of an aristocrat, falls in love with Marcheta, who is pledged to marry Don Ramón to save the family fortune. On her wedding day The Wildcat abducts her and reveals his aristocratic identity.