March 27, 1964, a 9.2 earthquake devastated Alaska and brought a tsunami that did further damage. Odin accepted his responsibility for this disaster and made a promise to Thor that he would never do such a thing again.
Fifty-three years later, Thor learns his father has returned to Homer, Alaska and is yet again in a destructive mood. What makes matters worse are two teens, Jessie and Jason Sørenson, are related to the Hnickar that continually entices Odin into being destructive.
Can Thor, Jessie, and Jason stop Odin and his Hnickar friend? Will another disastrous earthquake and tsunami finish the destruction begun more than half a century later?