ThunderCats (1985)

S1E13 Lord of the Snows

Title: Lord of the Snows Plot: After a meteorite composed of pure Thundrillium lands on Hook Mountain, the Thundercats plan to harness its energy to restore their dwindling power. However, Lion-O must first earn the confidence of the formidable Snowman, who guards the area fiercely. As he navigates this challenge, Lion-O learns valuable lessons about trust and cooperation in the face of adversity.