The film takes place in the 1780s. The Russians plan to overthrow Gustav III from the Swedish throne and Lieutenant Rehusen tries to stop them, while fighting for his king, he also fights for his love.
This one finds Jack Slade and Mary Conway,alias Blanche, being recognized as known and wanted crooks by deputy marshal Harry Stevens and, when he orders them out of town, Slade kills him.
Before his death, Mansour Pasha writes over his wealth to his two sons Omar and Othman; as the latter drowns, his wife gets a boy and claims he is Othman's son to ensure her share in the inheritance.
In Madrid, Spain, at the end of the 19th century, the young and reckless Basilio seems to be the only person who perceives the spectral presence of Professor Robinsón de Mantua, who begs him to take care of his niece Inés, because she is in grave danger.