The Avengers (1961)

S3E15 The White Elephant

Title: The White Elephant Plot: When an albino elephant vanishes from Noah Marshall's zoo, it coincides with Steed's inquiry into ivory residue found at a local gun shop. Determined to uncover the truth, Steed must save Cathy from a tiger's enclosure, locate the missing Snowy, and delve into the world of ivory smugglers.