Highlander: The Animated Series S01 E01 The Last of the MacLeods

"THERE CAN ONLY BE ONE!"

Immortal tyrant Kortan raids a village for slaves. Young Quentin MacLeod and his mother are killed in the attack but Quentin soon revives. Immortals Ramirez and Mangus help him and his kid stepsister Clyde find their captured clansmen.