Steve explores the radical variety of sharks in the Atlantic Ocean and marks the start of a global journey in the so-called shark capital of the world, the Bahamas.

Steve Backshall embarks on a mission to learn whether the sharks of the Indian Ocean are capable of adapting to rapidly changing conditions like climate change, overfishing and pollution.

Steve Backshall heads to the Pacific Ocean to look for shark hotspots. He visits Cocos Island, which is administered by Costa Rica and is a favourite of scuba divers. Steve wants to understand the reason why sharks get attracted to this area.

Steve Backshall travels from the icy waters of Alaska to the tropics to study the secret life of sharks. In the process, he shows that these endangered animals are not monsters.