When a local bowling league sponsors a grandparents/grandkids tournament, Grandpa Walt asks Walter Dodd's older brother, Danny, to bowl with him. But Danny's too busy with his paper route and now Grandpa Walt wants Walter for his "pinhead" partner.
Eleven-year-old Tyler Hawkins, known as Fishman to his sister Charly, faces the double challenge of impressing his stern father and saving the gentle manatees he loves from the poachers who are slaughtering them.
