"The Heat Thing": A lava monster attacks Jace on Jupiter (incorrectly depicted as a cratered rocky planet). Space Ghost must save him from the monster. "The Worm People": A tribe of worm-like creatures captures Dino Boy and Ugh must plan a rescue. "Zorak": Zorak, one of Space Ghost's enemies, is freed from prison by his henchmen and kidnaps the twins in a revenge plot against Space Ghost.

"The Lizard Slavers": Lizard-like slavers capture Jan and Jace for stumbling across their base. "The Moss Men": While running from a T-rex, Dino Boy and Ugh are captured by the Moss Men after falling into a water-filled hole that leads to their lair. The Moss Men plan to use Dino Boy as a sacrifice. Ugh must defeat the Moss Men and rescue Dino Boy before it is too late. "The Web": The Black Widow plans to kill Space Ghost with her minions the Tarantopods on her planet.

"Creature King": After suffering a reactor burnout, Jan and Jace land on a planet where huge animals live and are controlled by the Creature King. "The Treemen": Dino Boy is captured by a group of Treemen to serve as a sacrifice and Ugh must leap into action with the help of some mammoths. "The Sandman": The Sandman has attacked military units to draw Space Ghost to him in order to destroy his mind and conquer the world.

"The Evil Collector": The Collector shrinks people to use in a real-life cat-and-mouse game involving his pet six-legged alien cat Dracto. "The Fire God": A Fire God captures Dino Boy. The Saber-Tooth People plan to sacrifice him, but Ugh is determined to foil them. "The Drone": A mysterious figure uses a robot to steal the Phantom Cruiser. Space Ghost and the twins must retrieve it.

"Homing Device": Metallus threatens to destroy Earth with a missile unless Space Ghost surrenders to him. "The Mighty Snow Creature": Dino Boy and Ugh venture into the snow-capped mountains to rescue a young tribal girl from a large Snow Creature. "The Robot Master": Metallus uses a robot fleet to take over Space Ghost's planet.

"The Iceman": Zeron attacks Space Ghost by using a powerful ice ray. "The Wolf People": Ugh is captured by the Wolf People. Dino Boy and Bronty must save him. "Hi-Jackers": Jan and Jace are captured by Tansut after they witness his hi-jacking of a ship.

"The Energy Monster": Space Ghost must fight a monster created by Dr. Soonev in a lab accident. "Valley of the Giants": During an earthquake, Bronty is captured by a giant and Dino Boy and Ugh must save him. "The Lure": Brak and Sisto kidnap Jan so that Space Ghost will not interfere in Brak's robbery plans.

"The Cyclopeds": Space Ghost must rescue the twins from Cyclo and his robots. "The Ant Warriors": Ugh is captured by the Ant Warriors after fighting a Stegosaurus and got away. Dino Boy tries to rescue him but ends up having to save the Ant Warriors from a Megatherium. "The Schemer": Space Ghost is ensnared in the Schemer's plan to kill the team.

"Lokar - King of the Killer Locusts": Lokar lures the twins to him to be captured by his killer locust robots. "The Bird Riders": Dino Boy and Ugh are forced to protect a Bird Rider from the Rock Pygmies. "Space Sargasso": The Lurker and his partner One Eye have been preying on ships that pass close by and now they have their sights set on the Phantom Cruiser.

"Brago": Brago's bandits attack an outpost and the twins must defend them until Space Ghost arrives. "Giant Ants": While running from a volcanic eruption, Dino Boy ends up in a valley of giants. He has to run from giant ants and Ugh must come to the rescue. "Revenge of the Spider Woman": Staying true to her word, the Black Widow/Spider Woman tries to kill Space Ghost again. This time, she uses aquatic creatures.

"Attack of the Saucer Crab": Space Ghost must defeat a UFO from another galaxy that could be acting as a vanguard for an invasion. "The Rock Pygmies": Dino Boy and Bronty get in trouble with a Smilodon and are separated. Bronty is captured by the Rock Pygmies and Dino Boy must save him while leaving markers to show Ugh where he went. "Space Birds": An evil genius named Parko is using metal birds to attack satellites and destroy them.

"The Time Machine": Jace's time machine invention accidentally sends Jan back in time, where she is taken captive by a Viking named Tarko the Terrible. When Jace also gets captured trying to save her, it is up to Space Ghost to rescue them. "Danger River": After rescuing a kid from some Birdmen, Dino Boy and Ugh row along the Danger River to bring him home, where they encounter various threats like the Snake People and dangerous river rapids. "Nightmare Planet": Dr. Nightmare is planning on taking Space Ghost's brain for his mechanical monsters.

"Space Armada": Space Ghost and the twins must stop Metallus' new, powerful missiles. "The Vampire Men": While showing off his kite invention to Ugh, Dino Boy ends up crashing into the mountains and ends up captured by the Vampire Men. "The Challenge": Zorak resurfaces and has created a metal monster that he thinks will defeat Space Ghost. He issues a challenge to Space Ghost...if Space Ghost wins, Zorak will leave and never return. If Zorak's metal monster wins, Space Ghost must be the one who leaves forever. When Space Ghost's Power Bands somehow fail him, Jan and Jace uncover the ruse.

"Jungle Planet": The Mind Taker is abducting people to steal their knowledge. "The Terrible Chase": The Sun People are hunting and start chasing Ugh. Dino Boy must save him. "Ruler of the Rock Robots": The twins and Space Ghost are forced to battle Zorket and his rock robots. Note: the "Jungle Planet" introduction music of the opening title is from the Dino Boy series.

"Glasstor": Glasstor captures the twins in order to force them to work in his glass mines. "The Sacrifice": Ugh is captured by the Sun People to serve as a sacrifice and Dino Boy must stop them. "The Space Ark": The Creature King is planning on using his monsters to conquer Jupiter. Space Ghost must prevent the mastermind from reaching that goal.

"The Sorcerer": The Sorcerer is using his powerful magic for evil and plans to challenge Space Ghost. "The Marksman": Dino Boy teaches Ugh how to shoot a bow and arrow and Ugh throws his club at a rock but it was revealed to be a T-rex who attacks them. After that, a Pteranodon kidnaps Dino Boy for food and Ugh must save him. "The Space Piranhas": Pirahnor wants to use his space piranhas to take revenge on Space Ghost.

"The Ovens of Moltor": Moltor is planning on using his molten men and ships to take over the universe. "The Spear Warriors": Dino Boy and Ugh are collared for attacking a Spear Warrior and have to fight their way out. "Transor - The Matter Mover": Transor plans on using Jan and Jace as specimens in his zoo.

"The Gargoyloids": Space Ghost must keep the Gargoyloids, who have inhabited a planet during their wanderings through space, from causing problems in the galaxy. "Marooned": As Dino Boy teaches Ugh how to spell, they are attacked by venomous wasps who sting Ugh. Dino Boy must get some choka leaves from Misty Island or Ugh will die. At the same time, he must stop two Moss Men from sacrificing one of their own. "The Looters": Brak is using sleeping gas so that he and Sisto can rob gold shipments and Space Ghost has to stop them.

"The Meeting": Metallus, the Creature King, Zorak, Moltar, Brak, and the Black Widow/the Spider Woman unite to form the Council of Doom as they plan to destroy Space Ghost. Metallus goes first and uses a fleet of robots to attack Space Ghost. "Clutches of Creature King": After defeating Metallus' fleet, Space Ghost is forced to land on the Creature King's world. Cameos by Tor/Mighty Mightor and Tog. "The Deadly Trap": After Space Ghost thwarts the Creature King, Zorak plans to destroy Space Ghost using monsters. He also jettisons the twins when they try to rescue him. Cameos by Moby Dick, Tom, Tub, and Scooby.

"The Molten Monsters of Moltar": After escaping Zorak, Space Ghost and the twins are captured by Moltar. Cameos by Zandor, Tara, Dorno, and The Herculoids. "Two Faces of Doom": Following Moltar's defeat, Brak and the Black Widow/the Spider Woman each take their turns to dispose of Space Ghost. "The Final Encounter": After Space Ghost returns from a point in the past, he, Jan, Jace and Blip take the final fight to the Council of Doom. Cameos by Shazzan, Chuck, Nancy, and Kaboobie. This was also the only episode to have villains not associated with the Council of Doom, the Sultan of the Flame and his Fire Demon.