The Moochmore girls are certain they all suffer from some kind of undiagnosed mental illness - because if they're not crazy then they're just unpopular. Their mother Shirley - unable to cope with her demanding daughters and unsupported by her philandering politician husband, Barry - suffers a nervous breakdown. After Barry commits his wife to a mental hospital (telling his constituents that "she's on holiday") he finds himself alone with 5 teenage girls he barely knows. Desperate, he impulsively picks up a hitchhiker named Shaz and installs her in his home as nanny to his daughters.

Born charmer Sean Okden gave up tap-dancing when he started working in the steel mill, but as that's going down the hill he grabs his chance being the only candidate in his coastal Australian home town Newcastle selected for a Sidney show. Being sacked soon just for a row with the arrogant lead dancer, he returns to find his girlfriend in bed with his brother Mitchell, and decides to start his own tap-dance group wearing hardhats, which he soon gives an original edge when the steel mill inspires him to weld metal on their shoes and dance on industrial steel, so it the metallic acoustics fit well with a local rock group. Financing their local debut is so expensive, even when the mill allows them free us of its premises -opening some acrobatic perspectives- while even his father won't allow him to touch his mother's inheritance for the project, that the 'Bootmen' need to steal the cheerleaders' podium in a televised sports match to get media attention. Sean generously helps his brother ...