She-Ra: Princess of Power (1985)

S1E44 The Rock People

As the Horde and the Rebels race to investigate three strange meteors that crash-landed in the Valley of the Lost, they uncover something far more extraordinary than simple space debris. The rocks are actually living creatures from the dying planet Geolon, desperate to find a new home before their own world is destroyed. Now, both sides must decide whether these aliens are a threat or refugees in need of help.