While the Stalwart and most of the crew head to the Aquitania on a diplomatic diversion mission, Moses and Treyin take Nick and the other newly minted knights to the mountain city of an inconsequential planet for a clandestine mission to conquer the next Seraphic Portal. But the Dax are hot on their tails, so Nick and his friends must push their new powers to the limit and save a planet that is unprepared for the horrors of Dax enslavement.