Tree is twelve years old and too tall 150 six feet, three and a half inches and growing. He's never really been able to fit in at school or on the basketball team, and since his parents' divorce he isn't even comfortable in his own home. Tree copes by helping people like his grandpa, a Vietnam vet who's just had part of a leg amputated, and Sophie, a new girl at school who is being teased by the popular kids. In helping his grandpa learn to walk again, and in listening to Sophie's advice that he be himself, Tree begins to heal, to stand tall. But when a flood threatens his town and his home, Tree's newfound confidence is put to the test.