Dormant, experimental cells begin to awaken inside their human hosts, turning them into creatures called 'Amazons'. Two Amazons- Jin Takayama and Haruka Mizusawa- transform into Kamen Riders Amazon Alpha and Amazon Omega, aiming to exterminate the growing threat.

Cast: Tom Fujita, Masashi Taniguchi, Ayu Higashi, Ryota Kobayashi, Mitsutoshi Shundo, Katsuya Takagi