Former spy Kirk Warren has been sentenced to death after he was caught attempting to steal a million dollars.

At the last minute he is given the chance to redeem himself by seizing a secret formula before the notorious terrorist Mr. X can get hold of it.

Warren pretends to comply with his assignment but actually plans to sell the formula to Mr. X instead of delivering it to the British Secret Service.

Most of the cast and crew, including director Duccio Tessari, were frequent collaborators in westerns, especially the Ringo films.

The opening song for the film was composed by Bruno Nicolai and Pino Cassia and sung by Nancy Cuomo.