A quartet of cute idol singers moonlight as butt-kicking action heroines. When extraterrestrial invaders threaten the safety of the Earth, after an earthquake unleashes them from an alternate dimension, the Danger Dolls become humanity's only hope for survival. The team infiltrates the evil cult behind the invasion and must use their swords and their fists to smash the invading army.

After dying in a bus crash and falling to hell, high schooler Daisuke joins a demonic rock band so he can be reincarnated back into the mortal world.