Queen Isabella defeats and imprisons her husband King Edward II, crowning their young son Edward III. In the town of Kingsbridge, rumors are rampant that the imprisoned King has been murdered. A knight filled with secrets arrives in Kingsbridge seeking sanctuary. He will change the fate of all its citizens.
Kingsbridge is busy with its Fleece Fair, but the town's creaking, rickety bridge may fail any day. After being forced into a loveless marriage, Caris continues to see Merthin and tries to win him the opportunity to rebuild the town's bridge. A witch trial results in spectacular tragedy.
After the bridge collapse, Caris helps the wounded and hopes to open a hospital. Godwyn schemes to become Prior following the suspicious drowning of Prior Anthony. King Edward III declares war on France, and the Hundred Years War begins.
Caris seeks to recover a stolen treasure from Godwyn; Sir Thomas reveals a secret that threatens to upset the balance of power; Edward III prepares to attack Kingsbridge; Sir Thomas, Caris and Merthin lead a peasant uprising.
The Black Death makes its way to England; Kingsbridge is ravaged by the plague and descends into chaos.
Mother Caris, Merthin. Brother Matthias and Brother Thomas set out in Btother Godwyn footsteps to recover the gold he stole. When they catch up to him, they find him the sole survivor of the plague and half mad. The King is heartbroken to learn his daughter died of the plague en route to Spain. The Queen returns to mourn her granddaughter. As acting Prior, Caris offers anyone a fair wage to farm fallow land. Gwenda for one decides to take her up on her offer even though she is bound to the the lord of Shiring. Sir Ralph learns of his parentage from his true mother and takes a hard line with the peasants who stage a revolt. Petronilla schemes to ensure the future of both her sons.
Source: Channel 4