Mary Portas is just weeks away from launching her first ever shop. She finally has a retail partner on board who believes in her idea of a sexy, stylish shopping experience for grown-up women. It's a dream come true, but House of Fraser have got massive expectations - and Mary's grand plans don't always fit with the store's traditional top brass. Mary struggles with the store's management over everything from putting her face on billboards to her plan to sell stylish sex toys to her customers. Her radical store design is also raising a few eyebrows among her rival retailers, who are her neighbours on the shop floor. Feeling the heat and with a lot to prove, Mary is determined to get what she wants and digs her heels in fiercely, but there are some things even she can't control...