Watch Lawless Oceans

With the end in sight, Karsten now feels ready to present his evidence to the authorities. But anonymous threats make him rethink his strategy.

No bodies, fingerprints, or DNA. Will Karsten be able to identify the victims in the video? His quest takes him deep into Somali pirate territory.

Could the motive behind the killings involve drug trafficking? Karsten investigates the murky underworld of Mombasa and makes a major breakthrough.

Karsten interviews witnesses to learn more about the murders. Looking for a motive, he goes to the Seychelles and encounters illegal fishing.

The investigation takes off. In the Philippines, Karsten hunts for witnesses and explores the brutal world of illegal fishing and human trafficking.

Investigator Karsten von Hoesslin travels the world to learn who killed four men at sea. His first clue is mobile footage that captured the crimes.