Gaal Dornick leaves her life in Synnax behind when the galaxy’s greatest mathematician, Hari Seldon, invites her to Trantor.

The Foundation makes the long journey to Terminus as Gaal and Raych grow closer. The Empire faces a difficult decision.

A flashback reveals the origin of Gaal’s conflict between faith and science. The standoff on Terminus takes an unfortunate turn.

Brother Day meets Zephyr Halima—a would-be leader who opposes the Empire. Brother Dusk grows suspicious of Brother Dawn.

The Anacreons and their hostages board the fabled Invictus warship. The bond between Brother Dawn and Azura intesifies.

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.

Gaal, Salvor, and Hari chart a new path forward on Ignis. Demerzel heads to Trantor, taking actions that will change Empire forever.