In a race to find the floating island before the Zangyack forces do, the Gokai Galleon crew instead finds a veterinarian.

Joe and Luka infiltrate the Green Fleet, the Zangyack Empire's special forces, to learn more about their Gigarollium Cannon.

The Gokaigers head out to find this man, but in the end, they couldn't find anything at all. Suddenly, a young man shows up saying that he knows what they are looking for!

The new warrior, GokaiSilver, just suddenly appeared with 3 great powers and no one seems to know what they do. This young man really wants to join the Gokaigers, although Marvelous will only let him join on one condition.

The Zangyack Empire calls upon the Space-Ninjas Satarakura Jr. and Sandaaru Jr. to take on the Gokaigers. As the two take Captain Marvelous, Joe, and Luka on, the battle is witnessed by a trio of mysterious ninjas.

Marvelous, Joe and Luka are transported to Satarakura Jr.'s “Boki Space.” Yousuke, Nanami and Kouta, of Hurricaneger, convince Gai Doc and Ahim for the return of their ranger keys and break into the Boki Space to rescue them, while Marvelous falls into the worst situation.

The Go-Ongers' support robot Bomper contacts the Gokaigers, revealing that Sosuke needs back up in Gunman World to deal with one of the surviving members of the Gaiark Clan. However, Captain Marvelous refuses to help out.

The Gokaigers defeated Chirakashizky in order to stop Gaiark's attack on the Gunman World, but end up falling into one of their traps! Turns out that another Gaiark member is attempting to take over Human World! But having saved Gunman World, they now find out that the dimensional door to back to Human World has closed!

After a battle, the Gokai Galleon crew discovers a magazine feature that says that Don Dogoier is a famous warrior who once slayed a powerful dragon, but Doc reveals that he actually has no memories from shortly before he joined the Gokaigers. Damarasu joins forces with Basco in an attempt to exact his revenge on the pirates.

Captain Marvelous has been captured by Damarasu and Basco and is going to be publicly executed while Joe, Luka, Ahim and Gai are nowhere to be found. Doc, as the final Gokaiger left, must work on his own to save his fellow pirates.