Galactic Patrolman Saga

In Age 739, ten years before a teenage girl named Bulma will find a monkey-tailed boy on Mount Paozu, a small alien spaceship crash-lands on a remote island in Earth's ocean. The pilot is Jaco, a self-proclaimed elite member of the Galactic Patrol, sent to intercept a dangerous Saiyan infant being launched toward Earth from the doomed Planet Vegeta. The island belongs to Omori, a retired scientist who once researched time manipulation and now lives in quiet isolation, mourning the wife and assistants who died in an experiment gone wrong.

The Odd Couple

Omori reluctantly agrees to help Jaco repair his damaged spaceship. Despite his claims of elite status, Jaco proves to be clumsy, vain, and easily distracted. He defeats a shark terrorizing the island with casual ease, suggesting that his physical abilities are genuine even if his judgment is questionable. When government inspector Katayude arrives to evict Omori and spots Jaco, the alien panics and sinks their boat with a thrown rock, turning a bureaucratic visit into an incident.

Tights and the Rocket Rescue

A supply run to East City introduces Tights, a spirited young woman from West City who Jaco saves from muggers. She forces her way back to the island by threatening to reveal Jaco's alien nature, and soon reveals her own secret: she has volunteered to ride a dangerous rocket into space as a substitute for a famous idol, accepting the risk for money because the launch is expected to fail. When the rocket predictably malfunctions during launch, Jaco and Omori race to the rescue in his partially repaired ship. Jaco kicks the crashing rocket away from the city it was falling toward and destroys it with his Ray Gun, saving both Tights and the pilot. Katayude and his soldiers, having witnessed the rescue, decide to leave Jaco and Omori in peace.

The Saiyan He Never Found

The manga's final revelation ties everything to Dragon Ball's mythology. The Saiyan infant Jaco was sent to intercept is Goku, who landed safely at Grandpa Gohan's house while Jaco was distracted by his adventures with Omori and Tights. Ten years later, the cast reunites on Omori's island. Tights has become a science fiction author. Jaco has acquired a girlfriend. And a five-year-old genius named Bulma, Tights's younger sister, visits the island with her parents, casually repairs Jaco's ship, and mentions that she has set out on a trip to find mysterious orbs that grant wishes when gathered together. Omori narrates the story, noting that he will ask Jaco about these strange orbs the next time the patrolman visits. The final panels show Bulma with her Dragon Radar and Goku dragging a giant fish back to Gohan's house, directly connecting to the very first chapter of Dragon Ball.

Jaco the Galactic Patrolman is pure Toriyama comedy, the same sharp wit and visual gags that defined Dr. Slump and early Dragon Ball. Jaco's inflated self-image, paired with his genuine incompetence at his stated mission, creates humor that works on multiple levels. He is simultaneously a capable fighter and a terrible patrolman, a cosmic police officer who gets distracted by snacks while an alien child lands on the planet he was sent to protect. The contrast between his boasts and his actions provides the manga's comedic engine.

The rocket rescue sequence doubles as the story's action climax and its biggest visual gag. Jaco kicking a crashing spacecraft like a soccer ball, then casually destroying it with his sidearm, demonstrates Toriyama's gift for making the ridiculous feel exciting. The fact that this cosmic-scale action occurs in service of rescuing one brave young woman gives it a personal stakes that larger Dragon Ball battles sometimes lack.

Jaco the Galactic Patrolman exists in a fascinating creative space: it is simultaneously a standalone comedy and the secret origin story of Dragon Ball's entire universe. The revelation that Bulma's older sister Tights existed all along, that a Galactic Patrol officer was specifically sent to stop Goku's arrival on Earth, and that a retired scientist was experimenting with time travel a decade before the Dragon Ball quest began, all add layers to a mythology that seemed fully explored.

Toriyama's Circle Closes

The manga's final pages create a perfect loop. Omori's narration bridges the gap between Jaco's story and Dragon Ball Chapter 1, with Bulma's mention of wish-granting orbs serving as the moment where prequel becomes origin. The image of young Goku dragging his fish, rendered in Toriyama's later art style but recreating the manga's opening scene, carries the weight of forty years of storytelling. Everything that follows, every transformation, every battle, every friend gained and lost, traces back to the moment a five-year-old genius fixed an alien's spaceship and decided to hunt for Dragon Balls.

Jaco himself went on to become a recurring character in Dragon Ball Super, appearing during the Resurrection F, Universe 6, and Universe Survival arcs. His presence in the main series validates this prequel as essential Dragon Ball reading rather than a curiosity, and his continued inability to be useful in serious situations maintains the comedic spirit that Toriyama originally intended for him.