Kamen Rider: Memory of Heroez

The Narumi Detective Agency receive an email from a client requesting them to find "Professor Aida" with Shotaro Hidari leaving to investigate the island-based Sector City, once a tourist hotspot until an accident made it uninhabitable while emitting a strange energy. Shotaro meets with Kamen Riders OOO and Zero-One to uncover the mystery behind Aida and stop a Foundation X scientist reviving their old enemies and fallen allies as immortal super soldiers under his control.