Becoming Elizabeth explores the early life of Elizabeth I, long before she ascended the throne. Following the death of King Henry VIII, the teenage Elizabeth finds herself caught in the dangerous, shifting power dynamics of the English court. As her younger brother, Edward VI, is crowned king, the orphan Elizabeth is thrust into a world of political intrigue, religious turmoil, and the predatory ambitions of the powerful Seymour family. As she navigates the treacherous waters of the Tudor court, Elizabeth must learn to survive the machinations of those around her, including her siblings and the ambitious Thomas Seymour. The series portrays her transformation from a vulnerable, displaced teenager into the formidable and calculating monarch who would eventually define an era, highlighting the personal sacrifices and moral compromises required to secure her place in history.