The moves at a 'salsacise' class have more punch than anyone expected when Sarah and Helen fall out over a playground scrap between their children, Zac and Chloe.

Although it's 'Walk To School Week', judging from the rows of people carriers and Mia's promotion of her stuffed-crust pizza night by the school entrance, it seems Mr Gould's latest initiative hasn't made an impression. Mark and Helen, however, have forgotten
something a little more fundamental and neither knows who is supposed to be collecting Chloe.

Dashing to school with her clients in tow, Helen arrives to find that Sarah's son Zac had a minor scrap with her daughter. She wants him to apologise but Sarah blames Helen's lateness on allowing the scuffle to happen at all and refuses to admit fault. The false smiles give way and the mums spring into action, though not in a way the fitness initiative promotes. Despite receiving a telling-off by Miss Hunter, the matter is far from settled and the next day the pair are the talk of the playground.

As the whispers circulate and the husbands get involved, the situation spirals out of control. Helen and Sarah both embrace their fiery side when the debacle culminates at Mia's 'salsacise'
class, where the moves have more punch than anyone expected.