Ep 11. Make Believe It or Not

Bloo is feeling left out of all the fun Foster's Home for Imaginary Friends is having with their new friend, a make-believe friend named Uncle Pockets. Uncle Pockets is big, purple, has a top hat and a pocket full of toys - all qualities that Bloo believes make a friend perfect.

When Bloo is told that Uncle Pockets isn't real, he refuses to believe it. He becomes obsessed with proving everyone wrong and sets out on a mission to find Uncle Pockets himself. Bloo enlists the help of Mac and the rest of the house in his search, but they all think he's being ridiculous.

As they search for Uncle Pockets, they encounter strange and dangerous situations, but Bloo is undeterred. He refuses to give up until he finds his perfect imaginary friend. Eventually, though, he realizes that he may have been wrong about what makes a friend good. In a tearful moment of self-reflection, Bloo comes to the conclusion that being real and true is the most important quality one can have.

The search for Uncle Pockets ultimately brings the friends closer together and proves to Bloo that real friendships are worth their weight in gold.