SWAT Kats: The Radical Squadron

The SWAT Kats race against time to stop an "undead" evil sorcerer named the Pastmaster, who intends to send Megakat City back into the Dark Ages. But first our heroes must battle their way back from the prehistoric past.

Dr. Viper floods Megakat City with Katalyst X-63, an experimental formula that mutates any living thing it touches into grotesque, menacing versions of themselves.