Little Jack stuffs his ever growing hair under his green and purple hat. The hat has a boing-ee smack in the middle up on top. When Jack runs, his hat goes, "boing, boing, boing." When Jack laughs, it goes, "boing swift, boing swift, boing swift." Jack never removes his hat. In fact, he even wears it to bed. "It keeps my head nice and cozy" is what he said. Jack's growing hair causes his hat to grow taller and taller.

People are really beginning to stare. Finally, Jack makes the decision to get a haircut. This event brings many strange things out from under Jack's hat, which surprises even Jack.