From the liner notes

As the target of his father Harold's (Rush) drunken abuse, young Tony Fingleton (Jesse Spencer) escapes to the underwater solitude of the local pool, where he aspires to win his father's love by becoming a national swimming champion. But when his cruel father pits Tony against his own brother in a competition to make the Olympic team, Tony must find the courage to swim his way to victory…and out of his father's emotionally crippling net.