For millions of years, shark clans, called shivers, have ruled the sea. But lately, times have been tough for the shivers. Food is scarce, competition is fierce, and survival is harder than ever. In the midst of all this, a young shark named Gray finds himself banished from his peaceful reef and in deeper, unknown waters. Lost and alone, Gray will have to battle ferocious shivers, or join them, to survive. Follow along with Gray and his friends as they navigate the exciting and mysterious ocean world.