Adventure Time with Finn and Jake: Season 10, Episode 13 - ProjectFreeTV

10 - 13: Diamonds and Lemons

BMO narrates the Great Gum War in which Princess Bubblegum, Finn, Jake, Lady Rainicorn, Marceline, Flame Princess, Lemongrab, Huntress Wizard and Lumpy Space Princess band together to battle Gumbald and his army.