Hell's Bloody Devils (also known as The Fakers and Operation M)[1] is a 1970 American film directed by Al Adamson and written by Jerry Evans.
[2][3][4][5] FBI agent Mark Adams (John Gabriel) poses as a member of a Las Vegas crime syndicate in order to infiltrate the hideout of a neo-Nazi group.
Adams is aided from an undercover Israeli agent (Vicki Volante) whose parents were killed by von Delberg during the war; the count has in turn recruited a vicious Swastika-clad motorcycle gang, the Bloody Devils, to do his dirty work.
[4] A short review of the film by Howard Thompson of The New York Times referred to the use of young motorbike riders he described as "brutes" to be "box-office bait".
[7] The review by Peter Roberts of The Grindhouse Cinema Database noted the "funky psychedelic" opening credits montage which he described as "real cool."