Richard Hannay, a mining engineer on holiday from the African colonies, finds London socialite life terribly dull. Yet it's more than he bargained for when a secret agent bursts into his room and entrusts him with a coded notebook, concerning the impending start of World War I. In no time both German agents and the British law are chasing him, ruthlessly coveting the Roman numerals code, which Hannay believes he must personally crack.

It's winter in a small Scottish village near the sea, and multiple lives intersect in a day. Frances has just lost her husband to an early death, so her mother, Elspeth, travels to Frances' house to reconnect with her daughter and grandson, Alex. Meanwhile, old women Chloe and Lily go to a funeral, youngsters Sam and Tom cut class, and Alex gets a crush on tomboy Nita.

A woman looks back on her life as a political activist in Scotland from the 1950s to the 1970s.