Goro is a sommelier who transforms into the titular Kamen Rider G to fight the former anti-terrorism unit Shade, who captured and brainwashed him into a soldier, before the unit went underground due to the use of kidnapped people as supersoldiers. During a raid at TV Asahi led by DaidÅ Oda, who demands the release of their imprisoned leader, Seizan Tokugawa, Goro encounters his girlfriend Eri Hinata. She jogs his memory and he attacks his former comrades while getting Eri out of harm's way. This makes Oda reveal his true form as the Phylloxe...