Thundercats: Lion-O takes up mountain climbing, but during one of his climbs, The Mutants attack him with a Thundrainium gun, Lion-O calls the other Thundercats, but an avalanche traps Panthro, Tygra, Slithe and Monkian, in a cave causing a limited air supply. Meanwhile Jackalman steals the sword, but Lion-O manages to get it back and saves everyone.

Starring:

Bob McFadden, Earl Hammond, Earle Hyman

Genre:

Action, Adventure, Animation, Family, Fantasy, Sci-Fi