Ten-year-old Artie and his friends love two things: Molly Martin, and baseball. They are terrified of exactly two things: Molly Martin, and Old Lady Farnsworth, Artie's crochety elderly neighbor. When their baseball is stolen by Old Lady Farnsworth, Artie and his friends embark on a secret mission to steal it back. But they can't do that without the help of Molly Martin, and she's got her own set of likes and dislikes. Join Artie and his friends on the greatest summer adventure of their ten-year-old lives.