In 1838, at the age of 18, young princess Alexandrina's life is transformed when she ascends the throne of Great Britain and becomes Queen Victoria. Suddenly finding herself freed of the repressive shackles placed on her by her mother's advisor, Conroy, she builds a new alliance with the charismatic prime minister Lord Melbourne.

Lord Melbourne's resignation as Prime Minister leaves Victoria devastated. As Lord Melbourne's popularity in the house wanes, the Tories eagerly await their imminent triumph, while the Duke of Cumberland views it as a chance to prey on his niece's vulnerability.

A Chartist uprising in Newport underlines the instability of the monarchy. King Leopold suggests to Victoria that she consider Prince Albert as a possible consort, a development that results in the young queen being surrounded by suitors.

Prince Albert arrives in England for the first time, and he and Victoria take an instant dislike to each other in an awkward first encounter. Below stairs, Albert's valet clashes with the royal servants, while Skerrett is visited by a girl in need of money.

Melbourne warns Victoria that Parliament will not be happy about her marrying a German prince, a prediction that proves all too accurate when the Privy Council refuse to grant Albert a royal title. The prince fears for his future in England, while Victoria succumbs to paranoia, becoming convinced that he only intends to marry her for the financial independence he will gain.

Victoria realises that she is pregnant again, and her equilibrium is threatened by Albert's burgeoning friendship with female mathematician Ada Lovelace.

Discontent is growing in the country, and upon hearing the pleas of a silk weaver of Spitalfields, Victoria decides she must help. Against Peel and Albert's advice, she hatches a plan: a fantastic medieval ball at the Palace, where the attendees have to wear costumes made from Spitalfields silk.