Westminster in the 2020s. When Bobby Cliveden decides to campaign against the closure of her local mental health unit, she scarcely thought it would take her straight to the heart of the UK's bustling political centre. She heads to London to work for her local MP, the ambitious Simon Daly, and moves in with her two old university friends, Jess, a new lobby journalist, and Eva, a junior Downing Street adviser. The three of them quickly become wrapped up in the political circus of glamorous parties, insufferable bosses and demanding workloads - and the desire to win. Beneath the headline-grabbing battle of a male-dominated leadership contest, they discover the secret, soft-skilled machinery behind so much political change at the very highest level of government: women.