Wizards and Warriors (1983)

S1E6 Caverns of Chaos

Title: Depths of Disorder Plot: Vector unleashes the dreaded crimson fever upon Prince Blackpool and King Greystone, who is the father of Prince Erik. As the illness spreads, both royal figures find themselves battling the effects of this sinister curse, leading to a race against time for Erik to find a cure and save his father while confronting the dark forces at play.