Dumbledore Never Realized Fake Moody Was Barty Crouch Jr. ?

This video follows how Barty Crouch Jr. used Polyjuice Potion to impersonate Alastor Moody throughout Harry Potter and the Goblet of Fire. We examine the capture at Moody’s home, the stolen potion ingredients, Hogwarts’s security failures, and what the book’s final confession reveals about the supposed plot hole.