A brilliant, impatient fifth-grader with cerebral palsy, considered by many to be mentally retarded, discovers a technological device that will allow her to speak for the first time.

Three years after being released from Camp Green Lake, Armpit is trying hard to keep his life on track, but when his old pal X-Ray shows up with a tempting plan to make some easy money scalping concert tickets, Armpit reluctantly goes along.

Because she loves horses but is scared of them, Melody wants to conquer her fears, so she hopes a summer camp will be the place to welcome someone with cerebral palsy who wants to learn to ride.