The Super Powers Team: Galactic Guardians

When Darkseid threatens to ravage Earth with monster plants, Cyborg reluctantly agrees to help the Super Powers Team thwart the scheme.After single-handedly capturing Superman's perennial nemesis Lex Luthor, the bionic Cyborg is invited to join the Justice League of America—but surprisingly turns down the offer. Anxious to have someone his own age as a fellow Team member, the nuclear-powered Firestorm seeks out Cyborg to learn the reason for his reticence. But it will take the intervention of Darkseid and his Parademons, to say nothing of some horrific-looking sea pods, to make Cyborg change his mind. 
NOTE: From this point onwards, the show was retooled with a darker tone, a significantly different art style, and many previous notable characters with reduced roles. 
NOTE: Sarah Simms, Cyborg's love interest in DC's normal continuity makes a cameo appearance.

Stranded in space after Darkseid's attack, the Super Powers team must board a seemingly derelict ship. Mxyzptlk returns to cause more mischief by manipulating Bizarro to cause havoc on Earth.

Darkseid steals the identity of an astronaut so he can abduct Wonder Woman.

The Scarecrow is on a crime spree while Batman is traumatized by the supervillain's fear attack reviving his memories of his parents' murder.

The Super Powers team must battle the Royal Flush Gang.There's a new supervillain in town, and his name is The Ace. Gathering together a gang of four hardened delinquents, the Ace decks them out in sinister playing-card costumes, and thus the Royal Flush Gang is born. In their efforts to defeat this scurrilous quintet of no-goods, Robin and Cyborg discover that the Ace is taking his orders directly from their perennial enemy Darkseid—while Batman learns to his astonishment that the Ace is not a "new" nemesis at all, but instead a very old one... The Joker! 
NOTE: The Joker makes his first and only appearance in the Super Friends franchise in this episode.

The Brainchild: While enjoying a day off with Firestorm, Cyborg is captured by the robot minions of supercomputer Brainiac, who intends to use the bionic dogooder for one of his typically evil "mind-blowing" experiments. To save the life of his fellow Galactic Guardian, Firestorm enlists the aid of Superman and rushes to Cyborg's rescue. But it may already be too late: The two superpowered good guys are confronted by a gigantic killer robot... with Cyborg's brain and intellect trapped inside its power source! NOTE: Green Lantern makes a cameo appearance.

The Case of the Stolen Powers: While languishing in prison with the Penguin as his cellmate, evil necromancer Felix Faust conjures up a spell which enables him to steal the special powers of Superman. No sooner has this happened than the Penguin appropriates these powers for himself, and as result the Super Powers Team now works for him! In order to thwart the Penguin and emerge as the real villain of the piece, Faust absorbs all of Superman's powers, but Firestorm creates a kryptonite crown on Faust's head, weakening him and Wonder Woman uses her Magic Lasso to force him to give up Superman's powers and return them to the man of steel!

NOTE: First appearance of Felix Faust and The Penguin. Curiously, Batman and Robin were not present to face The Penguin. Aquaman, Hawkman, and Samurai cameo appearances.

A brilliant Japanese industrialist is kidnapped and replaced with a robot by the forces of evil. A mysterious island appears. Aquaman is attacked by a robot.The evil Darkseid's latest project involves the capture and takeover of Star City, a gigantic orbiting earth colony. To this end, he replaces the satellite's kidnapped inventor Mr. Moko with a robot lookalike that even fools Moko's daughter, Kiri. Meanwhile, Batman, Firestorm and Samurai must steer clear of Darkseid's minions Kalibak and DeSaad and their robot army, long enough to allow Superman, Wonder Woman and Aquaman to seek out and destroy the control equipment hidden in Darkseid's headquarters!

While he and Firestorm were in a mission in space, Superman suffers a massive kryptonite poisoning and dies; from all the corners of the galaxy, people come to show their respects for the fallen "Man of Steel".The unthinkable has happened: Superman is dead, the victim of Kryptonite poisoning. Injured in the mishap which felled Superman, a weakened Firestorm is captured by Darkseid, who wants the Galactic Guardian to reveal the details of the Man of Steel's demise. Meanwhile, several members of the Super Powers Team gather at the Fortress of Solitude, where they come across evidence indicating that Superman is still alive—but if this is true, why has he allowed the other Team members to fall into Darkseid's clutches? 
NOTE: The Flash and El Dorado appeared in this episode.