The Little Mermaid (1992)

S2E7 Tail of Two Crabs

Title: Claw of Two Crabs Plot: Sebastian's childhood buddy, who seems flawless in every way, returns to the kingdom, stirring up feelings of jealousy in Sebastian. His frustration over his friend's perfection makes him vulnerable, leading him to unwittingly fall into Ursula's scheme to seize control of the realm.