Mordecai, Rigby and Muscle Man together in the ultimate mission. Subscribe to the Cartoon Network UK YouTube channel: ?add_user= the Cartoon Network UK website: Welcome to the official Cartoon Network UK YouTube channel, the place where you can watch funny videos, clips with theme tunes and songs and game plays from The Amazing World of Gumball, Adventure Time, Ben 10 Omniverse, Teen Titans Go!, Mixels, Regular Show, Batman, Lego Ninjago, Uncle Grandpa, Steven Universe, Clarence and many others. Get ready to laugh out loud and join us by to the channel!.