Mutant Girls Squad (Sentou Shoujo: Chi no Tekkamen Densetsu, literal English translation Fighting Girls: Legend of the Blood of the Iron Mask) is a movie about a girl named Rin who learns she is a mutant with special powers. She meets a group of fellow mutant girls who are planning to take revenge on the human race for the persecution of their people. Her parents are killed shortly after she learns of her heritage of this race of mutants. From there, she begins training, learning how to fully control her powers.

mellow metallica is used as a theme song for this movie, featured in the movie, trailers, and during the ending credits.