Orcas rule the oceans. Since killer whales started attacking boats, many ask: Are they threatening us or just playing?
In this documentary, marine biologist and filmmaker Florian Graner explores orcas' mysteries, filming the best-studied killer whales by the Salish Sea. Singer and orca enthusiast Sarah Connor narrates the documentary.
The second part, "The School of Killers," shows a dramatic hunt off California's coast, highlighting orcas' social intelligence and precise cooperation.