[1][2] Preceded by Satan's Sadists (1969) and Hell's Bloody Devils (1970), it is the last in a trio of (unrelated) motorcycle gang films directed by Adamson for Independent-International Pictures Corp., a company he co-founded with Sam Sherman.

The plot centers on a group of tough biker babes who leave their cycle gang boyfriends to go on a violent rampage.

A group of good motorcyclists fight against an evil hippie cult based on the murderous "Manson family".

The popularity of Roger Corman's The Big Doll House, a violent women in prison film with Pam Grier, led to a reshoot.

The reworked and retitled film turned out to be a big box office success for the studio.