This ThunderCats t-shirt shows a distressed image of Panthro, Lion-O, Cheetara, and Tygra ready for action in front of a setting sun. The classic animated series ThunderCats followed the heroic Thunderians who fled their dying planet, and were chased by the Mumm-Ra and the Mutants of Plun-Darr to Third Earth. There, the ThunderCats and Mutants battled for control of the Sword of Omens.