Orcas are the rulers of the seas and are admired by many. But since they started attacking boats off Gibraltar, many people are asking themselves: Are they threatening us or are they just trying to play? The voice of singer and orca enthusiast Sarah Connor gives the documentary a special depth. The 2-part documentary shows the different hunting strategies and the social intelligence of the animals. But the emotional side of the whales also comes into play: how they mourn and how they have fun.