A television special broadcast to commemorate the 20th anniversary of the Super Sentai series.

After Tokyo police officer Yokoda is killed in the line of duty, his chief decides give Yokoda's body to Dr. Tani for use in a secret scientific experiment: Yokoda's brain will be transplanted into a super-powered robot body, making him into an unstoppable policeman of the future. The supercop develops problems, however, when he begins to remember his human past. Then there is the matter of Dr. Tani's other cyborg, who has become a super-powered homicidal maniac.

A group of travelers is stranded in a small country inn when the river floods during heavy rains. As the bad weather continues, tensions rise amongst the trapped travelers.

The female ninjas have to stop an alliance from carrying out their dastardly deeds, which includes bizarre ninjitsu sex magic to aid them in their quest.