Cartoon Network Preview
Text taken from Cartoon Network's Website. Note that for part one and part two they use the same preview write-up.
Season 1 - Episode 2
Fleeing the destruction of their home planet Thundera, Lion-O and the ThunderCats land on the mysterious, dangerous, all-around awesome world of Third Earth! But their enemies, the Mutants of Plun-Darr have followed them and it turns out Third Earth already has a Mumm-Ra problem, can Lion-O learn the ropes of being a leader in time?