Rocky, Winky, Bobby, Vena and Professor Newton take off for Fornax after a missile that has struck Earth is determined to have come from that moon.
Zorovak of Fornax agrees to return to Earth with Rocky Jones even though Professor Kardos warns him that Earthmen can't be trusted. Nestor Pava as Kardos.
Griff teams up with Darganto and Cleolanthe of Ophiuchus and invade Fornax with the help of the evil Professor Kardos.
Vena's spaceship is captured by space pirates from the planet Prah, and Rocky uses a "cold light" to make his spaceship invisible, then sets out to battle the interplanetary gang and their lady boss.
Rocky is captured but manages to escape to Earth on the Orbit Jet.
The pirates learn of Rocky’s new secret weapon, and uses their knowledge to elude Rocky and his plans to bring them to Earth for punishment.
Bobby is captured and the Orbit Jet is stolen.
Professor Newton saves Yarra, the boss of Medina, from the radiations of the Forbidden Moon.
Rocky captures a serum from Agar which saves the people of Medina from radiation.
Rocky apprehends a criminal who has fled to Earth and tricks him into a confession
Kip, the son of a suspected saboteur, is helped by Rocky to find a new life
Cleolantha, leader of Ophiuchus, forces her way into a United Worlds Conference.
Cleolantha takes her revenge on the conference by capturing the delegates.
Rocky and his crew are taken prisoner but escape to Earth on the Orbit Jet.
Upon landing on a strange planetoid, Rocky and his friends meet the Valley and Hill People.
Rocky and Bobby are wrecked on a planetoid where the natives worship them as gods. They find a flying saucer hundreds of years old and a beautiful girl as well.
Rocky and Professor Newton save two lives and leave new friends as they return back to Earth.
Rocky and his crew receive word that there is a strange cold spell on Earth.
Professor Mayberry determines that a trotanic missile is needed to ignite the sun before it is too late.
Rocky starts off his mission to fire trotanic missiles into the sun.
Rocky and his crew discover all wood and paper products on their ship has disintegrated.
Professor Mayberry has a plan to avert the threat of the moon Cryko.
Rocky's foes visit Julieandra on the planet Herculon.
Rocky and the crew travel to a distant world named Mandora
Nizam, the sinister ruler of Regalio, plans to use his planets magnetic force to destroy Earth.
Rocky and Professor Mayberry are intercepted by a Regalian flying saucer when they follow Clark's instructions.
Rocky and Professor Mayberry reveal their true purpose to Julieandra.
Rocky, Vena, Bobby and Biff land their rocket The Silver Moon for refueling on Ankapore, a planet that is a haven for criminals, since it refuses to sign extradition treaties with the United Planets. Griff, Rudy DeMarco and Dr. Reno see a chance to settle old scores against Rocky and contrive a fight. Rocky is accused of assault, attempted murder, and finally piracy when Griff's space ship the YC-47 disappears.
Biffen Cardoza defends Rocky at his trial, and in a series of flashbacks we watch Rocky battle Griff, Brinkman, Dr. Vanko, Cleolantha and Dr. Reno. Meanwhile, the YC-47, under the command of Zandorf enters the United Worlds Space Station O-W-9, where Clark discovers Pinto Vortando is being held a hostage.
Pinto Vortando and Clark are called as witness in the Trial of Rocky Jones, and just as LaVolga is about to pass judgment on Rocky an Earthquake hits the underground city, endangering many lives.