Mary prepares for her official debut in London society, buoyed by her friendship with Ann and the attentions of Mr Ryder. But a run-in with her old rival Caroline Bingley threatens Mary's growing confidence. Mary faces up to her old rival at a dinner party, but just as things seem to be shifting for Mary, an urgent message from home throws everything into uncertainty.

As Mary is finding her footing in London, she overhears something which knocks her newfound confidence. Mr Hayward opens up Mary's mind – and her heart – by introducing her to poetry. But their budding connection is complicated by Mr Hayward's engagement. As Mary wrestles with troubling new feelings, she finds herself caught between duty, a new friendship and the possibility of love.

In the wake of a family tragedy, the Bennet household is thrown into disarray. Mary faces an uncertain future, until her aunt and uncle offer her the chance of a fresh start. At first, Mary struggles to adjust to her new life, but she begins to realise that there's a world away from the watchful eye of Mrs Bennet.

After disappointment at the ball, Mary sets aside hopes of finding a match and devotes herself to more serious pursuits. But Mary's resolve is tested when Mr Bennet's distant cousin Mr Collins visits Longbourn with a surprising proposal. Mary contemplates a decision that could save her family from ruin – but is she really willing to suppress her true feelings to secure her family's future?

Seemingly unremarkable and often overlooked, Mary Bennet longs to win her family's approval. The Meryton assembly brings with it an opportunity to shine – and Mary's first taste of romance. But when Mary's behaviour at the ball attracts attention, she must decide between trying to please her family and forging a path of her own.