The eldest son of Thunderhill's warrior-kings, Otto Johanson lives for battle, having given up on love since the death of his partner three years ago. When the Midsummer festivities bring nomadic reindeer herders back to town, Otto notices the sullen, but handsome Lukas.
Tension rises between them during the annual tournament, but when a terrible attack devastates Thunderhill, Otto and Lukas must put aside their rivalry to embark on a dangerous quest that may be the town's only hope of continued survival.