River gets cozy in the Cotswolds while searching for a sleeper agent. Min discovers Russian drinking games are the most brutal of all.

Louisa makes her move on Pashkin. Catherine makes moves of a different kind when she plays high-stakes chess with a sinister stranger.

Adam and Libby’s happy but unconventional marriage is disrupted when Libby’s test results come through. When gorgeous, fun-loving Miranda arrives in their lives, Libby struggles to draw lines between her…