One of many siblings in a large Australian family, Tony Fingleton (Jesse Spencer) struggles to make his own mark and, most importantly, garner the respect of his stern father, Harold (Geoffrey Rush). Deciding to pursue competitive swimming, Tony embarks on a quest to become the best athlete possible. Along the way, he discovers both confidence and his talent. Although Tony has the support of his beleaguered mom, Dora (Judy Davis), winning over his dad proves to be far more difficult.