Johnny's plans fly out the window when he finds out his single mother is leaving town for the summer. She has a breakthough job in upstate New York. He can live with his Aunt Collette but only on the condition that he and "help out with and " his autistic older cousin, Remember. Yup, you heard it right: Remember Dippy. That's his cousin's name - and Remember is a gawky awkward kid with some pretty strange habits, like repeating back almost everything Johnny says and spending hours glued to the weather channel. Johnny's premonitions of disaster appear at first to come to cringeworthy fruition, but when the two boys save a bully from drowning, salvage the pizzeria guy's romance, and share girl troubles, Johnny ends up having the summer of his life.