Kamen Rider Gills is left for dead after being assaulted by Toru Hojo's firing squad and G3's attack.

Shouichi decides to live at Aki Sakaki's house while she's gone.

Due to the lack of progress in anti-Unknown defense the police decide to bring in Toru's ex-partner Ryuji Tsukasa to head the G3 team.

Shouichi decides to take over the bakery he works at when his boss, Sashi Hanamura, is murdered.

Ryuji Tsukasa convinces the police department that the current G3 team should be disbanded and a new one should be made with him at the helm.

Toru Hojo figures out that Hanamura's death was not caused by an Unknown but by a human making it look like an Unknown.