Local track star "Flash" Gordon learns that his scientist father, believed dead for more than a decade, actually disappeared through a trans-dimensional rift.

Nick is bitten by an alien parasite that has traveled through a rift inadvertently opened by Rankol, and Baylin and Flash must travel to Mongo to secure the antidote.

Flash is filled with shock and awe when his father reappears on Earth, but the real identity of the elusive Dr. Gordon comes into question when the bodies of his colleagues begin to pile up.

Vultan, leader of the flying Dactyl tribe, comes to Earth to retrieve his long-lost son, who's grown to be a disbelieving juvenile delinquent. Meanwhile, Flash's mother presumes he's dating Baylin.

Flash and Dale discover that a beautiful young woman is sucking the life out of healthy, strong men.

Flash and his friends find refuge with the Verden and try to fix their water machine, which Dr. Gordon built. Meanwhile, Baylin faces her greatest fear, a dreaded Night Hunter; and Dale has a heart-to-heart with Flash's mother.

When Ming orders Aura to marry Barin, she uses an Omadrian love potion on Flash in hopes that Barin will call off their nuptials. Unfortunately, Ming finds Aura with her two suitors and decrees that the men will duel to the death.

When Rankol sends a beautiful bounty hunter to bring Zarkov back to Mongo, her arrival is caught on camera, so Dale tries to prevent a rival from running with the story - which catches the attention of an obsessive government agent.

When rifts spontaneously open, Flash and Joe find themselves working on a chain-gang in a Mongo coal mine. Meanwhile, Dale and Baylin are forced to contend with a pregnant Deviate who's stumbled to Earth and gone into labor.

Flash and Zarkov attempt to thwart an impending war between the blue Zurn and flying Dactyl tribes. Meanwhile, Joe goes to the police captain with tales of Mongo; and Baylin helps Nick restore a car.

Joe steals a rift blaster to get proof of Mongo and, while tracking him, Dale falls prey to a witch who possesses her body. Meanwhile, Rankol is showed up by a rival female scientist.

Flash intercepts a baby who's been marked for death, which leads him and Aura to the Deviates' lair, where they learn a shocking secret. Meanwhile, Zarkov & Baylin search for the lost rift blaster; and Joe ends up aligned with the enemies.

Ming steals a lake from Earth, so Flash and his friends head to Mongo with plans to destroy the rift generator. Meanwhile, Aura introduces Ming to his son Terek, king of the Deviates; and Rankol questions the Celetroph prophecy.

When Terek is blamed for poisoning the water supply, Flash and Aura set out to obtain an antidote from a rogue Omadrian. Meanwhile, Dale attempts to find out what happened to Joe by forcing a confession from Lenu.

Dolan sends Flash on a quest to Frigia to rescue the queen, who's been encased in ice. Meanwhile, Terek reveals his true identity to Ming; and Dale prepares to go public with a news story about Mongo.

Terek prepares to seize Ming's throne. Meanwhile, Rankol's allegiance to the Celetroph monks is discovered; Aura's birthstone reveals her mother; Dale and Norah evade government agents; and Flash finally finds his father.

Ming's troops are on a mission to steal ice from Frigia, so he enlists the Zurn to serve as his army when Terek and his followers invade Nascent City. Meanwhile, Flash, his friends and parents prepare to leave Mongo for the final time.