Italian racing film

1470. The Canary Islands try to resist the Spanish invaders. Their inhabitants are divided, their chief and his daughter Guayarmina (for whom a Spanish officer has fallen in love) wanting the peace, while the priest and resistance leader are for war. After several battles the islanders are chased to Tirma mountain by the Spanish army.

A crack team of Italian naval divers plan to attach high explosives to the hulls of Royal navy warships anchored in Gibraltar harbour.

A young woman is murdered and robbed in broad daylight. A young man is arrested, in possession of some of the jewels of the victim. The passionate protests of his sister arouse the compassion of Za la Mort, who promises to help the girl.