In a world where monster wrestling is a global sport and monsters are superstar athletes, teenage Winnie seeks to follow in her father’s footsteps by coaching a loveable underdog monster into a champion.
Primatologist Davis Okoye shares an unshakable bond with George, the extraordinarily intelligent, silverback gorilla who has been in his care since birth. But a rogue genetic experiment gone awry mutates this gentle ape into a raging creature of enormous size. To make matters worse, it’s soon discovered there are other similarly altered animals. As these newly created alpha predators tear across North America, destroying everything in their path, Okoye teams with a discredited genetic engineer to secure an antidote, fighting his way through an ever-changing battlefield, not only to halt a global catastrophe but to save the fearsome creature that was once his friend.
Long ago, a fallen Makai Priestess named Higari became too powerful and after tampering with powers no one should wield, she had to be stopped and was eventually sealed away by another Makai Priest named Sougen. Using his body and his own life, he created the Tougen Flute and sealed Higari shortly after his death. However, through a special ritual, those who seek Higari's power can resurrect her by replaying eight notes on the Tougen Flute to undo Sougen's seal. In the present, while Kouga Saezima has travelled to the promised land (Garo: Soukoku no Maryu), two fallen priests,Jabi and Rekka, will attempt to return Higari.
Chief Kuroki tells the team that they will soon be meeting Beet Buster and his new Buddy Roid, but before any introduction can be made, the Soujikiloid attacks. Soon after Hiromu learns that the two new Go-Busters originated from Hyper Space, he challenges them to a duel, suspicious of their motives. This is a director's cut version of episodes 15 & 16 of the Tokumei Sentai Go-Busters TV series.
Japan is thrown into a panic after several ships are sunk near Odo Island. An expedition to the island led by Dr. Kyohei Yamane soon discover something far more devastating than imagined in the form of a 50 meter tall monster whom the natives call Gojira. Now the monster begins a rampage that threatens to destroy not only Japan, but the rest of the world as well.
Two fishing scout pilots make a horrifying discovery when they encounter a second Godzilla alongside a new monster named Anguirus. Without the weapon that killed the original, authorities attempt to lure Godzilla away from the mainland. But Anguirus soon arrives and the two monsters make their way towards Osaka as Japan braces for tragedy.
Egos kidnaps the children of Information Supervisor Sakaguchi, Yoko and Kenichi. They then blackmail him into stealing the blueprints and completion status of the Battle Fever robo. Tetsuzan Shogun, who joined the Defense Department at the same time as Sakaguchi, is greatly concerned and confronts him. Sakaguchi escapes but vows to make amends. He appears at Egos factory, where they too are building a giant robo, and discloses a false timetable. When Egos orders them killed, Sakaguchi reveals dynamite strapped to his body. He backs away with his children and gets them to safety. He then returns to the factory, and blows himself up to destroy it. Unfortunately, his sacrifice is in vain, as their evil robo is already completed. But Battle Fever’s giant robo is also complete and ready to save the day!
An expedition in the South Pacific lands on a tropical island where the natives worship the mysterious deity Gappa. An earthquake opens up an underground cavern and a baby reptile is discovered inside. The natives warn the foreigners to leave the hatching alone, but they don't listen and take it back to a zoo in Japan. Soon after, moma and papa Gappa start smashing Tokyo looking for their kidnapped child.
The advertising director of Pacific Pharmaceuticals, frustrated with the low ratings of their sponsored TV program, seeks a more sensationalist approach. He orders his staff to Faro Island to capture King Kong for exploitation. As Godzilla re-emerges, a media frenzy generates with Pacific looking to capitalize off of the ultimate battle.
Journalists Ichiro Sakai and Junko cover the wreckage of a typhoon when an enormous egg is found and claimed by greedy entrepreneurs. Mothra's fairies arrive and are aided by the journalists in a plea for its return. As their requests are denied, Godzilla arises near Nagoya and the people of Infant Island must decide if they are willing to answer Japan's own pleas for help.
After a fishing boat is attacked, the sole surviving crew member realizes it is none other than a resurrected Godzilla. However, efforts to bring the story to light are suppressed by the Japanese government amid growing political tensions between the United States and the Soviet Union, who are both willing to bomb Japan to stop the monster.