From the introduction:
Íth, first of the Gaelic peoples, saw Ireland from his fathers tower. Now, he and his men have landed to see what discoveries exist in this Emerald Isle. The Tuatha De Danaan, and their three kings, at first welcome you as visitors. But soon, suspicions grow that these ancient peoples have other plans for Íth and you, his retinue.
Quickly, a royal welcome to this last land of the gods becomes a nightmare from which Íth and you, his captains, doubt you will survive. As the gods' and their will bend ever more to your destruction, you face a fight or flee decision – both which may prove fruitless in the endgame.