Plot: Justin Roiland breaks down the roles that make up his legendary career, including 'The Most Extraordinary Space Investigations,' 'The Real Animated Adventures of Doc and Mharti,' 'Acceptable TV,' 'Fish Hooks,' 'Adventure Time,' 'Gravity Falls,' 'Rick and Morty,' 'Krampus,' 'Hot Streets,' 'Smallfoot' and 'Solar Opposites. '