A London bombing puts Taverner under pressure. When River grows concerned for his grandfather, Louisa encourages him to go for a visit.

Salvor begins to question the Mentalics’ motives. Hober Mallow’s proposal to the Spacers meets resistance. Brothers Constant and Poly stand trial.

Enjoiner Rue confides in Dusk about her distrust of Demerzel. Hober Mallow pulls a daring move. Day sets course for Terminus and the Foundation.

Dusk and Enjoiner Rue learn Demerzel’s origin and true purpose. Tellem’s plans for Gaal take a dark turn. On Terminus, Day confronts Dr. Seldon.

Gaal, Salvor, and Hari arrive on Ignis and meet the source of the strange signal they’ve been tracking. Dawn and Dusk are suspicious of Day.

Sullivan’s dream of leaving Kembleford is scuppered when he is arrested for receiving stolen goods.

Villanelle decides to take matters into her own hands on a trip to Amsterdam. Carolyn is called in to face the music with her boss. After the discovery of another…