Part 1: Adam and Charlie chat about Xmas, a Detroit rapper, and a hypothetical Charles Dickens self-portrait. Part 2: The Season 4 finale. The Wyld Katz and their allies including the Bowler Bombs, Sven and Sir Shredsalot, and Santa and his elves, fight to retake the North Pole from the Cause and try to prevent them growing up all kids in the whole world.