ThunderCats

S03E17 The Thunderscope

While revisiting their old wreck site, Lion-O and Snarf discover the Thunder-scope, a mythical telescope capable of locating lost Thunderians and their possessions. Mumm-Ra, eager to seize the Thunder-scope in order to uncover the treasure of Thundera, ambushes Lion-O and fatally wounds him. In his final moments, Lion-O manages to remove a lens from the Thunder-scope, preventing Mumm-Ra from utilizing it fully. Just then, Jaga appears to Snarf and Lion-O's lifeless body, bringing Lion-O back to life. Mumm-Ra soon returns for the missing lens, and Lion-O must confront him once again.