Through the lens of a forgotten camera, "Serena Wadham: Unseen" follows the remarkable discovery of a photojournalist whose work captured the pulse of social change from 1960s London to rural Cornwall. When Serena's great niece Josie and photographer Lesley uncover her extraordinary archive, they embark on a mission to resurrect the legacy of a woman who documented everything from anti-Vietnam protests to intimate portraits of bus drivers, women’s lives and classical musicians.

As they piece together Serena's story through her photographs, letters, and notes, the film reveals how one fearless woman's eye chronicled both the famous and the forgotten, the political and the personal, ultimately questioning why her vital contribution to British photojournalism remained buried for so long. Their journey to mount a retrospective exhibition becomes a race against time to ensure that Serena's powerful voice - and the stories she preserved - are finally heard.