She-Ra: Princess of Power (1985)

S1E39 Into the Dark Dimension

Catra and Shadow Weaver’s botched spell yanks She-Ra and Hordak into a shadowy void. The enigmatic Dark One appears, offering a single escape route—but only if they can solve his twisted riddle. Forced into an uneasy alliance, the princess and the warlord must set aside their bitter history and navigate the treacherous realm together, each step testing their fragile trust.