
S01E01 Presidio
Millie Harcourt and Jean McBrian travel to San Francisco and join forces with two American codebreakers to pursue a serial killer from their war days.
After a seemingly innocent man is charged with murder, the women become involved in a tangled suburban tragedy, racing to find both the true killer and the methods before the scent goes cold. Meanwhile, Jean grapples with how to build a new life for herself.
During the thrilling social change of the mid-1950s, four remarkable women who previously served secretly during WWII as code-breakers, turn their skills to solving murders overlooked by police. In the process they are plunged into fascinating corners of the city, forge powerful relationships, and rediscover their own powers and potential.