Flash discovers a secret about his father, who was thought to have died years ago, which takes him to the mysterious world of Mongo.

Flash and Dale travel to an alien world where an evil dictator questions them about a mysterious artefact.

Ming's bounty hunter Baylin takes refuge at Flash's house, attracting another of Ming's brutal minions to wreak havoc on Earth.

When alien creatures appear through the rift and poison Nick, Flash and Baylin travel to Mongo to find a cure.

While investigating a new rift Zarkov has identified, Dale finds CCTV footage of Flash's father returning to Earth.

The Dactyls from Mongo steal a rift blaster and proceed to Earth to abduct a young boy. Flash, Dale and Baylin give chase.