Robin's friend Sir Godfrey Humboldt has been lost on an expedition to the Dark Galaxy. Robin and his men launch a private rescue mission.

On the way home, Robin and his men visit friendly giant Tiny. After they leave, a hidden spacecraft turns Tiny violent and setting him against the civilization on Xeno.

Robin and his men join Horatio Spaulding on his expedition to Asteroid Korgor. They are attacked by phantoms. They search for the ruined ancient royal city of Mendosa hoping to uncover its treasures.

A mad emperor on an Egyptian-type asteroid attempts to recruit Rocket Robin and 2 others for his nefarious ends. When they refuse they are taken hostage but escape. The fiend sends a monstrous flying sphinx after them.

On earth, freakish disasters are making notable scientists disappear. Robin and his men investigate.

Ghost pirate ship The Flying Dutchman is wreaking havoc on transport ships. The Solar Space Guard enlists Robin's help in transporting Princess Lea and setting a trap for the pirates.

A distant galaxy is exploding after discovering Dementia Five. A scientist compresses the entire library into a tiny module. He escapes but is brought down over Sherwood. Robin retrieves the module and is pulled into Dementia Five.

Robin investigates a series of mysterious solar blackouts. It is the work of Dr. Nocturn, the Lord of Cosmic Shadows.

Dr. Medulla and his assistant Hugo use a cosmic space storm to re-energize his living planet and use his mind to control it. Robin is caught in the same storm and crashes onto the planet. Medulla's rebel former assistants come to his aid.

Dr. Manta and his hunchback assistant Igor use an army of giant beetle robots to enslave the local population. One of them manage to get a message to Robin who mounts a rescue mission.

Robin and his Merry Men crash onto a planet where giant mushrooms emit a hypno-gas which threatens to put them into an endless dream. They must stay awake until sunrise hoping sunlight will neutralize the gas. (Clip show)