"ThunderCats" is an animated television series that first aired in 1985. The show follows a group of cat-like humanoid aliens from the planet Thundera who escape to Third Earth after their home is destroyed. The main character, Lion-O, leads the team, which includes characters like Cheetara, Panthro, and Tygra, as they battle the evil sorcerer Mumm-Ra and protect their new home. The series combines action, adventure, and fantasy elements, featuring themes of friendship, bravery, and the struggle between good and evil. "ThunderCats" became popular for its unique characters and engaging storylines, leading to various adaptations, including a 2011 reboot and a 2020 series titled ThunderCats Roar.