In The Year 2056 in Xinghai City, a strange red aurora had appeared in the sky. The red aurora-attracted evil forces was released and turns into Monsters. In the heaven realm, a Wizard（仙翁）gives the fairy Meimei（美美）four different Crystal Bangles, told that she must find four talented people to transform them into Kaisers, a type of giant warriors to stop the monster.

A submarine expedition to salvage the remains of Mechagodzilla is thwarted by a massive dinosaur named Titanosaurus. An Interpol investigation leads biologist Ichinose to uncover the work of Dr. Mafune and his mysterious daughter Katsura. Aligned with the Black Hole Aliens, Katsura's life becomes entwined with the resurrected machine.

Manga artist Gengo Odaka lands a job with the World Children's Land amusement park only to become suspicious of the organization when a garbled message is discovered on tapes. As Gengo and his team investigate, Godzilla and Anguirus quickly decipher the message and begin their own plan of action.

Astronauts Glenn and Fuji investigate Planet X and encounter mysterious aliens known as the Xiliens, who ask Earth's people to help save their world from "Monster Zero". In exchange for borrowing Godzilla and Rodan, the Xiliens offer a cure for cancer. As Glenn investigates, he develops a romance with Miss Namikawa and uncovers the Xilien's true intentions.

Mining engineer Shigeru investigates the disappearance and death of his fellow coworkers when prehistoric nymphs are discovered emerging from the mines. After an attack on the local village, Shigeru heads deeper into the mines only to make a more horrifying discovery in the form a prehistoric flying creature. Soon a second monster appears as the two converge in Fukuoka.

Godzilla and Megalon battle each other in Japan.

Mysterious aliens and evil monsters that shouldn’t exist are attacking! Zero, Ribut, Taiga, Z, 80, Max, Mebius, Great, Powered, Grigio, and many more Ultra Heroes fight together to solve this mysterious case, which could end up affecting the whole universe. However, this is only the beginning! A conspiracy is underway – and stories are intersecting. What is the aim of the golden giant working in the shadows?! While connecting to the TV series Ultraman Z as well, a new history of Ultraman begins! This is the complete, director's cut version of the original web series with no breaks!

A man forced to bear power and stripped of humanity. A woman skeptical of happiness. Takeshi Hongo, an Augmentation made by SHOCKER, and Ruriko Midorikawa, a rebel of the organization, escape while fighting off assassins. What’s justice? What’s evil? Will this violence end? Despite his power, Hongo tries to remain human. Along with freedom, Ruriko has regained a heart. What paths will they choose?

Five young New Yorkers throw their friend a going-away party the night that a monster the size of a skyscraper descends upon the city. Told from the point of view of their video camera, the film is a document of their attempt to survive the most surreal, horrifying event of their lives.

In order to counter the rapidly increasing organized crime, the development of Polymar Suits resumed under the direction of the newly inaugurated police superintendent. But when three of the test version Polymar Suits are stolen, former street fighter and current detective Takeshi Yoroi is tasked with recovering them and the invincible hero Hurricane Polymar is born!

The U.N.G.C.C. (United Nations Godzilla Countermeasure Center) recovers the remains of Mecha-King Ghidorah and construct Mechagodzilla as a countermeasure against Godzilla. Meanwhile, a giant egg is discovered along with a new monster called Rodan. The egg is soon found to be none other than an infant Godzillasaurus.

Big Rally! Titan Boy! is the second movie of Choushinsei Flashman. It is a theatrical edit of episodes 15 to 18 (The Giant Robo is Worn Out, The Human Minimini Plan, The Mysterious Giant Reckless Car! and Big Turnaround! The Transforming Robo) with new and extended scenes.