Before the Hawaiian islands were unified under one kingdom in 1850, they were warring factions also fending off white invaders.

The 'Game of Thrones' alum co-created and stars in the sweeping, action-packed drama about the unification of Hawaii in the 18th and 19th centuries.

As the series opens, the kingdoms of O'ahu, Maui, Kaua'i, and Hawai'i are trapped in a non-stop cycle of war. A prophecy foretells that one day a great king will unite the kingdoms and end these wars. However, that prophecy has only made kings believe that they'll be the ones to unite the kingdom, further exacerbating conflict.