Multimillionaire entrepreneur Hilary Devey (her off Dragon's Den) wants to find out why so few women make it to the top in business. She discovers why men still hold more than 80 per cent of senior jobs over in Britiain, examining factors like maternity leave, the cost of childcare and women's leadership style. Along the way, Hilary hears some home truths about the prospects for women inside her own company, and confronts her belief that it is up to the individual to smash through the glass ceiling. She also learns that mixed gender teams can lead to bigger profits, and talks to stay-at-home mothers about their ambitions.