A mission to take down a Black Cross fortress becomes hampered when a Masked Monster, under the direction of a returned general, takes Variblune from Shinmei for their usage. This is a theatrical version of episode 15 of the Himitsu Sentai Gorenger television series.
Unfortunately the movie Himitsu Sentai Gorenger: The Blue Fortress is not yet available on Disney Plus.
| Writing | Shozo Uehara | Writer |
| Directing | Koichi Takemoto | Director |
| Writing | Shotaro Ishinomori | Original Story |
| Crew | Bunya Nakamura | Stunts |
| Crew | Hiroo Kawarazaki | Stunts |
| Crew | Kazuo Niibori | Stunts |
| Crew | Midori Naitô | Stunts |
| Crew | Nobuyuki Ishizuka | Stunts |
| Production | Michinao Fukazawa | Producer |
| Production | Susumu Yoshikawa | Producer |
| Production | Tōru Hirayama | Producer |
| Production | Takashi Ogino | Producer |
| Sound | Chumei Watanabe | Music |
| Sound | Isao Sasaki | Theme Song Performance |
| Sound | Mitsuko Horie | Theme Song Performance |
| Sound | Koorogi '73 | Theme Song Performance |
