When three amphibian warriors celebrate at a distant space station, their festive evening takes a dark turn after an encounter with a mysterious dancer who unmasks herself as the diabolical Dark Queen. Two of the trio fall into captivity and are spirited away to the hostile planet Armagedda, but the lone survivor escapes with help from their mentor and vows to mount a daring rescue mission. Armed with nothing but determination and martial prowess, the remaining Battletoad must navigate treacherous terrain—from flooded caverns to perilous marshlands to the insides of colossal creatures—while confronting increasingly formidable enemies. The journey culminates in a showdown against a towering mechanical monstrosity that stands between freedom and victory.