Four ownerless androids shack up in an abandoned house, but with no electricity to recharge themselves, they face the threat of a forced shutdown. To get utilities up and running, they rally together to perform at Babel, the epicenter of entertainment where singers sing their way through a tournament for prize money. Will this android boy band have what it takes?
Takatora Kureshima (Kamen Rider Zangetsu) visits a former Yggdrasill Corporation experimental project site located in the poverty and conflict stricken Republic of Torukia. He is visiting the site for the first time in 8 years, and is suddenly attacked! Suprised he stumble and falls into a giant hole which leads into an underground city. This underground city is the most dangerous place in the republic, in which many young men are killed defending themselves while trying to survive. These men use Lock Seeds and Drivers to transform into Armored Riders. Due to the fall Takatora has lost his memory. He is helped by the leader of Team Orange Ride. Unbeknownst to them, there are cameras hidden all around the underground city. The ones behind the cameras are responsible for the conflicts in the city. One man in particular is seeking revenge on Takatora for a specific reason...
A rock band, SHARK, dreams of changing the world with their music. Without their visionary leader, will they ever fulfill that dream?