Four old friends from high school have little in common, besides the fact that they were 'the losers' in high school who tried to avoid the attentions of the popular school bully, Tiffany Turner. Now twenty seven-years-old and content with their lives, the friends receive a surprise invite to their ten year reunion. Will facing Tiffany mean sweet revenge or a re-evaluation of their current lives?

As Bec, Frances and Sophie celebrate their eight million dollar lottery win, Jenny reacts badly to missing out. Despite Bec's best attempts to help talk Sophie and Frances into sharing, Jenny's over-the-top rant seemingly seals her fate. But when a series of events leads the girls to question the value of friendship in their lives, a collective decision is made to split the prize money four ways. Now all of them are multi-millionaires. And, more importantly, well and truly part of each other's lives once more.

As the arrival of the money looms, the reality of the win forces Bec, Jenny, Frances and Sophie to reassess direction of their lives. A misunderstanding, a friendship challenged and a relationship on the brink forces them all to make some life altering decisions.

Jenny throws a party to celebrate Bec and Matt setting the wedding date. The event brings everyone together for the first time - and with it, more than a few surprises. The morning after the night before sees all the girls dealing with ramifications of the evening, before Bec makes a shock announcement regarding her special day.

The girls take to the fields on Race Day. Launching their new business, Zach and Frances have organised a marquee, but some nasty advice from one of Zach's former female colleagues leaves Frances wondering if her new partner can be trusted. Meanwhile, a coincidental meeting with a former university professor reignites a painful memory for Sophie and she hits the races in anxious party mode. But her new-found sobriety means no alcohol, and she throws herself into any action going. Then, Tiffany Turner underestimates the girls' reformed friendship when she arrives with a big announcement for Jenny.