Zarkov becomes stranded on Mongo and is arrested in Nascent City. While imprisoned he meets Kreb, somebody who has information about Flash's father.

Flash must help Baylin rescue the Verden who have been sold into slavery.

Flash and the gang visit Mongo after Rankol steals a body of water from Earth.

Flash heads to Frigia, a cold area of Mongo, to free the region's queen.

Ming orders Rankol's execution after he learns that Rankol is a Celetroph. Terek builds a force to rebel against Ming, while Flash is shocked by a discovery he makes in the mainframe room of the Citadel. Dale and Norah, who are being chased by "men in black," escape to Mongo.

The attack against Ming has begun, though Azura offers Ming assistance in repelling Terek's forces. Dr. Gordon is freed from a mind prison, leading to a brief reunion between father and son.