Everyone knows their story. They were heroes, who struck a blow for freedom at the cost of their own lives. Vicki grew up reading of their exploits. She's always hoped to be as brave as them. Now the TARDIS has brought her to their dark and desperate era. The war is still unfinished, and the story's end has not been written yet.

Can Vicki play her part in the struggle for a better future? Or is the past more complicated than she's bargained for?