Two grave robbers accidentally awaken the Pastmaster from an 800-year imprisonment. Now free, this evil sorcerer seeks to use the Tome of Time to take Megakat City back to the Dark Ages.
Dr. Viper intends to steal Katalyst 99 from Megakat Biochemcial Labs with his Giant Bacteria monster. How can the SWAT Kats stop a creature that only divides when it's attacked?
Mac and Molly Mange are brought back from the dead as robotic gangsters. The bloodthirsty bionic duo seek their revenge against their enemies, including Mayor Manx, who they think denied their parole.
Convict Rex Shard has an accident while using an experimental device to mine for gems that turns him into a giant monster that allows him to turn everything he touches into crystal.
The Metallikats return and discover the secret identities of the SWAT Kats. Armed with this knowledge and a pair of giant Puma Dyne Mac Robots, the Metallikats draw the SWAT Kats out into a destructive showdown.
MASA scientist Dr. Harley Street inadvertently brings back the alien Ci-Kat-A and falls victim to their bite, which turns him and others into slaves that begin to mutate into Ci-Kat-A themselves.
Institutionalized comedian Lenny Ringtail strikes a bargain with the vengeful spirit of the Medieval court jester Madkat to get revenge against the modern day jester, king, queen and knight who he blames for his failed career and imprisonment.
Space pirate Mutilor arrives with a superior strike force and a stolen spaceship that can collect an entire world's water supply. With the Enforcers unable to stop him and the Turbokat out of commission, will the SWAT Kats be able to save their home world?
Razor’s self-confidence is shattered when he believes that he injured two elderly civilians during a battle. He becomes discouraged enough to quit the SWAT Kats, leaving T-Bone to face Dark Kat’s latest evil plot alone.
Turmoil attempts to ransom the skies of Megakat City with a powerful airship, a squadron of female fighter pilots and the disorienting “vertigo beam.” When T-Bone withstands these obstacles, Turmoil offers him a job as her flight commander, but first he must prove his loyalty by killing Razor.
When the SWAT Kats, Felina Feral and Ann Gora search for some missing miners in the caverns beneath Megakat City, they soon find the cause of the disappearances: rock scorpions who have been mutated into gigantic, kat-eating monsters.
Mayor Manx and Mr. Young plan to build an industrial park on Anakata Island, the SWAT Kats equivalent to Hawaii. During construction, the ancient "fire demon" Volcanus is accidentally freed from his volcano prison.
Dr. Zyme and his partner Dr. Elrod Purvis co-develop Viper Mutagen 368. While attempting to steal the chemical, Purvis spills it on himself and seems to die, but the flawed formula causes him to revive as Dr. Viper.
When the injured Metallikats use an experimental tool to repair themselves, the device is "contaminated with their criminal personalities." It refers to itself as Zed and begins absorbing other machines, builds an ever-growing armored body around itself and seeks world domination.
Hanna-Barbera hired an outside producer to make this clips compilation, which was meant to promote the beginning of SWAT Kats’ second season but didn’t air until months after it was completed.