In the past, the 34 Super Sentai defended the Earth against Space Empire Zangyakku. The soldiers of legend lost their powers during this battle, but through their sacrifice, Zangyakku was able to be repelled from the Earth.

Several years later, we meet a group of young pirates who travel aboard the ship, GoukaiGalleon. They are in search of the "Uchuu Saidai no Takara" (Greatest Treasure in the Universe). They head towards Earth, where it is said the Greatest Treasure rests.

The Space Empire Zangyakku begins their second invasion of Earth. They set up their fleet headquarters between the Earth and the Moon. On the other hand, Marvelous and co. are told by Navi to "start their treasure hunt on Earth by finding people with black clothes." However, because of Navi's rough navigation, they are having a bit of trouble doing that. Coincidentally, in front of them appears a man.

GoukaiGalleon has a midair collision with a Zangyakku battleship, sending the battleship into a firey crash. GoukaiGalleon is forced to make an emergency landing as well. Before they know it, the team is under the attack of Kodou Taichou Salamandam, and the five are blown off by an eruption he causes. When they come to, they once again meet the mystery man, but who is he really?

The Gokaigers had achieved the Great Power of the Magiranger. Using the Magiranger Keys in the cockpit, the Rangers activated MagiDragon. Action Commander Zodomas, a sword specialist, appears and begins destroying the city. Joe and Ahim are out shopping when Zodomas attacks, and have to start fighting with Marvelous, Don and Luka.

Joe is made a fool of by Zodomas' sword techniques, and after the battle he decides he needs to go this one alone, and leaves Gokai Galleon. Ahim is worried about him, and tries to convince him they need to fight as a team. Can Joe really defeat Zodomas on his own? Grasp this battle in your hands! It's not something you want to miss!

Navi, using its Otakara Navigate ability to go to the police because they will tell them something good. Later on, Marvelous finds one and he is no other than Space Police's Earthshine Chief, Doggie Kruger! And the problem is, he is interested in arresting the Gokaigers! The Zangyack later appears and Marvelous can't do a thing because he is in handcuffs!

Luka sees a jewel she desperately wants, but to her displeasure a little girl buys it before she can get her hands on it. Suddenly, the girl's father approaches Luka. He'll give her the jewel if she comes and works in his house, and so she is invited.

Within the house there seems to be a treasure, as the Zangyack are targeting it as well. For the sake of doing some recon, and protecting a potential treasure, and also for selfish reasons, Luka decides to take the job. But can Luka really do said job? And what is the treasure the Zangyack are looking for?

Navi asks them to look for a "Tiger Boy for Great Wisdom" and so, they started heading out to search for zoos. However, the Kung Fu Specialist Action Commander, Pachamac XIII appears and begins destroying the city.

In the battle, Doc and Ahim tried to take on the Commander and the lost which cause them to feel down for themselves. By chance, the came into a group that teaches Kenpo Lessons for kids. Teaching the kids is a young man and the two started their Kenpo training. Will Doc and Ahim defeat this Kung Fu Specialist? And who is this man?

The Zangyack Empire sends the Sneak Brothers to spy on the Gokaigers.

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.

With Navi's next clue being "Sa-mu-r-aa-i", the Gokai Galleon crew seeks out a kendo club until they are approached by a girl who claims to be the samurai known as Shinken Red. Joe begins training with her to face off against his old comrade Barizorg.

Joe goes off to face Barizorg alone in an attempt to make him remember his past as Kaoru assists the Gokaigers in their fight against the Zangyack Empire.

Ahim is kidnapped after going out into town and held hostage. Captain Marvelous leads the other Gokaigers to save her, claiming that he does not want to pay the ransom.

Aboard the Gokai Galleon, the crew is taking a nap when Navi's dream triggers a new clue for the pirates, telling them to learn traffic laws. Meanwhile, while reviewing Zaggai's activities aboard the Gigant Horse, Insarn falls in love with a man that the Action Commander crossed paths with: Kyousuke Jinnai (Red Racer).

Don shows his shipmates that the Gokaigers' bounties have skyrocketed to nearly the same level of the Red Pirates. Showing no interest in the news, Captain Marvelous tells Navi to foretell their next course; the robot parrot, however, sees danger coming their way. Meanwhile, a red Zangyack ship arrives to the Earth with Oiles Gil learning that it is captained by a privateer under the Zangyack Empire. While cautiously exploring in a town, the Gokaigers meet the privateer, who Captain Marvelous identifies as Basco ta Jolokia. He announces that he has also come for the Greatest Treasure in the Universe.

Captain Marvelous must figure out a way to save his crew members from Basco ta Jolokia without paying the ransom of all of the Ranger Keys. The crew must fight the joined forces of Go-onSilver, Go-onGold, GoseiKnight, KibaRanger, ShinkenGold, MagiShine, MegaSilver, GaoSilver, AbareKiller and BoukenSilver.

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 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 next of Navi's clues leads the Gokaigers into the Ginga Forest, home of the Gingamen, and into another clash with Basco ta Jolokia. Elsewhere, Gai encounters Hyuuga who demands the Gokai Cellular from him

The Gokaigers must help Satoru Akashi search for a Precious. However, both the Zangyack Empire and a revived Ryuuwon get in their way

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When Navi's Treasure Navigate hints mentions an "act of mercy", the Gokai Galleon Crew proceeds to help people out. But as Basco attempts to beat their shipmates in obtaining a Sentai team's greater power, Luka and Ahim cross paths with an EMT who is more than she appears.

While getting some takoyaki, the Gokai Galleon crew once more cross paths with the Action Commander Jealousto, who after losing face to Insarn has been taken in as a "pet" by the takoyaki stand owner.

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 Action Commander Regaeru appears. After receiving an electric shock from Regaeru's attack, Luka and Don aren't able to fight properly because the two of them had switched bodies.

Shortly after defeating an army of Zugormin, the Gokai Galleon crew go out to have a meal when they are confronted by the legendary bounty hunter Kiaido, who once defeated Captain Marvelous in the past. Due to this previous encounter, his presence immediately brings fear into Captain Marvelous. The Gokaigers' use of the Biomen and Maskmen's powers prove ineffective against Kiaido, who allows them to retreat, as he is disgusted with fighting weaker opponents.

When Action Commander Daiyarl begins to attack women to gather their happiness for a Zangyack Empire attack, Ahim goes undercover to stop him.

When the next fortune from Navi refers to a "skateboarding lion", Gai realizes it must mean Choujuu Sentai Liveman's Yellow Lion, Joh Ohara, while Action Commander Zaien begins his attempt to thwart the Gokaigers' search.

With the next fortune being "Uao", the Gokaigers seek out their next clue until they find a sign at an amusement park that says "Greater Power found here", and they find Momo Maruo, the former OhPink of the Ohrangers. However, Basco has also managed to find this Greater Power, and has been approached by Goro Hoshino, the former OhRed.

In order to defeat the more powerful Action Commander Shieldon, who boasts an impenetrable shield, Doc works on developing a new more powerful weapon.

When Gai loses the Gokai Cellular to Action Commander Bakyura, he learns what it truly means to be a hero from a strange man who owns a Chinese restaurant.

Luka is reunited with her childhood friend Cain who has since become a millionaire

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 watching the Gokaigers defeat another wave of Zugormin with Go-on Gokaioh and Goujyujin, Warzu Giru throws his usual temper tantrum over the loss until Insarn tells him of the unexpected visit from two members of the Imperial Guard, the Dogormin. Meeting with the Dogormin, Warzu learns that they have brought with them the Great Warzu robot, the Zangyack Empire's greatest war machine, for him to get the invasion back on track.

Gokaioh and Goujyujin are formed to face the Great Warzu, which knocks Machalcon back into Machine World before overpowering the Gokaigers' Goujyu Gokaioh formation. Sparked by his memories of Aka Red's death, Captain Marvelous refuses to let his crew die as he forcibly ejects them to safety.

The Gokaigers must figure out how to combine all of their powers to defeat Warzu Giru's Great Warzu, while Joe and Barizorg face off for the last time

With Navi's next clue being "Moroboshi High School", Gai realizes that their next clue to the Greatest Treasure in the Universe has to do with the Megarangers. The Gokaigers visit the high school, and discover that Kenta Date, the former Mega Red, has become a teacher, and he tells them that they must become his students in order to obtain his team's greater power

The former Time Yellow Domon tells the Gokaigers that they must go back in time to help the Goseigers and Shinkengers.

On the Gigant Horse, wondering what their next course should be, Damarsu and Isarn receive an unexpected visit from the Zangyack Imperial Fleet as the Zangyack Emperor Akudosu Gill arrives to the bridge. As news of his son's death has reached him, Akudosu has decided to assume command while having his Imperial Guards take Damarasu to the brig for failing in his mission as he then sends the Imperial Guard Zatsurigu to avenge his son.

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.

Gai gets Luka interested in Christmas just as Dyrandoh brings his fellow Imperial Guard Bibaboo to Earth so that he can turn those they attack into dolls.

With the Gokaigers holding 29 of the 35 greater powers, and Basco with 5, the Gokai Galleon crew discovers that the only one left is that of the Ninja Sentai Kakuranger. Remembering Negakure Temple, the crew finds a strange pot containing the Kakurangers' ally Ninjaman who tests them to see if they are worthy of the Kakurangers' greater power.

The evil in the hearts of Don and Gai is magnified by the powers of the new Action Commander, Evil Spirit Faith Healer Jyujyu. With Ninjaman observing the Gokaiger, what is about to happen?!

Sally seeks refuge with the Gokaigers when Basco turns on her.

With Basco ta Jolokia in possession of all of their Ranger Keys and 34 of the greater powers, the Gokaigers must find a way to get them back and to defeat him once and for all

With all 35 of the greater powers, the Gokaigers seek out the Greatest Treasure in the Universe, but Insarn is sent to begin the Zangyack Empire's final assault on the Earth

Zangyack is advancing on their final plans, which includes an all out attack on the Gokaigers, and the ultimate destruction of Earth! It has been revealed that the Greatest Treasure in the Universe can, and must, be used to wipe out Zangyack's Great Fleet, completely. The Gokaigers are hesitant to do so, as the cost of the power would be the existence of the 34 senior Super Sentai...

With their mecha defeated and the Galleon badly damaged, the Gokaigers engage in a life-or-death struggle against the Zangyack. One after the other, strong enemies gather to stand in the Gokaigers' way. Will the space pirates prevail over this brutal empire?