Carrie takes Gumball Darwin and Anais to a real haunted house party! / Anais uncovers a secret that she's convinced will lead her to the Watterson's hidden family treasure. / Darwin is too polite to speak his mind so Gumball teaches him to be direct via an epic battle of insults. / For once in his life Gumball is the one who's owed an apology. / Gumball and Darwin make friends with classmate Clayton a compulsive liar who can shape-change! / Santa Claus is coming to town. Unfortunately he gets run over by the Wattersons. / Gumball and Darwin learn that getting a family heirloom back off an old man is hard. / Bobert becomes Gumball's servant for a week and Gumball realizes robots obey everyone. / Gumball asks Idaho to teach his family to live a simpler life.