The crew encounters an idyllic-looking, Earth-like planet run by a protege of Nebula, Rhesus 2.

Gor gets increased intelligence, and Rhesus 2 wants to use him to create more anti-force for Nebula.

The Simians find an alien planet on the other side of a wormhole that a meteor is about to hit.

Rhesus 2 destroys the "holo-boon generator" and the replacement they get creates an evil dictator.

A psycho-neutron annihilator bomb destroys all life forms and can protect itself from being discovered.

Damaged in battle, the Simian ship lands on the planet Maltese.

Nebula has figured out how to get his hands on the GLOP generator.

Nebula has the GLOP generator but needs one last part from the Primate Avenger.

Capt. Simian is lost on a world of illusion, and only a visit from Mandrax can save him.