Following Vortigern's fall, Britain bleeds in chaos and rival ambitions. Pascent (Vortigern's son) seeks revenge and allies himself with Hengist (a Saxon), sealing a deadly pact to overthrow Constance's sons (Aurelius and Uther). Merlin seeks unity, reuniting with his mother Charis and grandfather Avallach (king of Maridunum), who reveals a surprise (conversion or Christian support, testing loyalties). Aurelius and Uther are hosted; tensions between brothers arise (Aurelius more diplomatic, Uther impatient). Avallach emphasizes the need for a king with justice and mercy. Morgian deepens the betrayal; internal threats (faith tested, bad bargains) outweigh external ones. The episode focuses on the struggle for the High King's throne, lines drawn and loyalties tested, with Merlin forging alliances amidst the darkness behind kings and blades. Reviews highlight the emotional family reunion and fast-paced fighting.
