A new evil organization known as Space Shocker, which are led by the magic-using Space Ikadevil and Space Spider Man, threatens the Earth by causing an unknown phenomenon. The Space Sheriffs Gavan type-G and Sharivan are sent to execute all magic-users on Earth in response to the threat and begins to attack Kamen Riders Wizard and Beast. The Space Crime Syndicate Madou, who were once defeated by the original Sharivan return, to cause even more havoc in the world. During this, Yoko finds a mysterious little robot called Psycholon, which Space Shocker and the Madou are after for unknown reasons.
Taking place 4 years after the events of the Uchu Sentai Kyuranger TV series, the universe is at peace. But that changes when Hammie (Chameleon Green) attacks the Rebellion and steals the newly developed Neo Kyutama! Fearing its possible misuse once it falls into the wrong hands, Space Federation President Tsurugi Ohtori (Houou Soldier) declares Hammie wanted all across the universe. Lucky (Shishi Red) and some of the Kyurangers believe in Hammie, fighting against Tsurugi's decision, causing a rift amongst the Kyurangers. And where do Space Sheriff Gavan and Space Sheriff Shaider fit onto all this?
Space Sheriff Gavan vs Tokusou Sentai Dekaranger features the return of Yuma Ishigaki from 2012’s Space Sheriff Gavan: The Movie and the 2015 Space Sheriff Next Generation films. The first installment will join the two police themed heroes as they face a massive space crime organization.
Shu Karasuma/Shaider is given a mission to save a certain scientist's kidnapped daughter but the biggest question is: can he get along with his partner, Tamy who is not happy about his womanizing ways?
Kai Hyuga/Sharivan uncovers the existence of a spy from the Neo Madou organization. In addition to that Kai's friend, Seigi, becomes the new Space Sheriff Estevan. They must find the spy and stop a drug ring from shipping a pain suppressing narcotic called Hyper-M on Earth. But the new Space Sheriff must learn to trust his instincts and that not all is as it seems...
A film version of Choujinki Metalder, set between episodes 17 & 18 premiered on July 18, 1987 at the "Toei Manga Matsuri" film festival, where it was shown as part of a quadruple feature alongside Dragon Ball: Sleeping Princess in Devil's Castle, Saint Seiya: The Movie and the film version of Hikari Sentai Maskman.
An alien assassin, Omega, who makes a living by hunting down Space Sheriffs, arrives on Earth. Adapting a helmet, twin shoulder cannons, and other weapons into his fighting style after losing to Gavan and Sharivan, Omega is now targeting Shaider and challenges him to a fight to the death. Space Sheriff Shaider is the film adaptation of the Metal Heroes series of the same name. This movie takes place between episodes 19 & 20 of the TV show.
Roxanne, Julie, and Alex are THE SUITS, martial artists granted extraordinary powers with dark side effects. The trio must reunite and overcome their own challenges to defeat a new threat to mankind.