Shark Week celebrates its 25th anniversary with a jaw-dropping look back at the greatest breaches, brushes, and bites with the ocean's apex predator. YouTube celebrity Philip DeFranco takes viewers on a fast-paced ride through all of Shark Week's greatest hits, including going "Into the Shark Bite," cavorting with "Sharks After Dark," living through a "Sharkbite Summer" and learning how to avoid a "Great White Appetite." And go behind the scenes to see the best bites in Shark Week history.