Set in London during Christmas, Black Dove is a poignant, action-packed, heartfelt story about friendship and sacrifice. The series tells the story of Helen Webb (Keira Knightley), a witty, down-to-earth, dedicated wife and mother, and a career spy. For ten years, she has been passing on her politician husband’s secrets to the shadowy organization she works for: The Black Doves. When her secret lover Jason (Andrew Gorge) is assassinated, her spymaster, the mysterious Reed (Sarah Lancashire), calls Helen’s old friend Sam (Ben Whishaw) ) to protect her safety. Together, Helen and Sam embark on a mission to investigate who killed Jason and why, uncovering a vast, interconnected conspiracy that links London’s dark underworld to a looming geopolitical crisis.