Father Liam Riley's past comes back to haunt him when an immortal named Sean, whose mother he shot in a battle during the American Revolution, shows up looking for revenge. Having taken a vow long ago never to raise his sword again, Liam is at the mercy of Sean, and Nick and Amanda are determined to protect him. Meanwhile, a reporter who witnessed Amanda die and come back to life after a battle with Sean is looking to write a story about what she saw.