Game description from the publisher:

Ships and sailors steer the course of history in The Captain’s Command, the fifth Chapter Pack in the "A Song of the Sea" cycle for A Game of Thrones: The Card Game! Its sixty cards (three copies each of twenty individual cards) allow players to make greater use of the cycle's new naval challenge enhancement. Players will also find new locations, potent Prayers, powerful blood magic, and the first addition to the game's melee titles found in the Core Set.