One night, an exhausted Finn and Jake are creeped out by an odd-looking horse that mysteriously appears outside the treehouse and keeps them awake. They try everything they can think of to get rid of the freaky horse, but nothing seems to work. Come on grab your friends, we'll go to very distant lands. With Jake the dog and Finn the human, the fun will never end. United States/Mexico/Korea, Republic of/Spain 2010.