Living in the Shadow of World War II (2018)

S1E8 Shave and a Haircut, Two Friends

Captain K'nuckles thinks he's discovered a treasure map leading to Candied Island and enlists Flapjack to help decipher it. Unfortunately, Flapjack is unable to read it because he desperately needs a haircut. They head to Doctor Barber for a trim, but upon arrival, they discover that the barber has swiped the map for himself.