Waking in an abbey, Nimue finds herself surrounded by strangers and forced to tend to Red Paladins. Arthur sets out on an adventure of his own.

Morgana urges Nimue to use the sword for leverage, Father Carden faces a bitter humiliation, and Uther loses patience with Merlin.

In the ruins of a castle, Nimue and Merlin finally meet face to face, and more secrets from the past come screaming to the surface.

With Red Paladins closing in on the Fey hideout, Nimue hatches a bold plan to buy time and secure an escape for her people.

Nimue weighs a fateful decision, Uther takes a defiant step, and Gawain discovers not all is what it seems within the Red Paladin camp.