In order to finalize his plans to destroy the Cooper Clan once and for all, Clockwork realized that he needed the aid of four powerful master criminals to perfect his crime. But what made this mastermind of an owl choose these four specifically? Find out why as we look into the Fiendish Files and discover the history behind the birth of these master criminals. File #1: Sir Raleigh.

Avatar Aang defeated the Phoenix King, Avatar Korra triumphed over Amon, and now a new Avatar will begin her journey to protect the world. However, when an Underground Nation prepares to go to war with the White Lotus itself, the Avatar will learn that fighting may not be enough; and that her choices could bring the downfall of the White Lotus, as well as the demise her friends.