Watch Thundercats Season 1 Episode 58 full movie online free in HD with English subtitles – no download needed.
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.