Beneath the waves lies another world, one of strange beauty and deep secrets. Dr Tasha Philips explore a mysterious, endangered creature that despite reaching 12m in length, usually swims by the UK shores unnoticed, the basking shark.

Travelling with the sharks on their northerly migration, former shark hunters talk about dangerous battles with giant fish, Dr Philips explores scientific tagging studies that follows sharks across the oceans, and meet the people fighting for their future. Dive into the underwater world of the shark.
By Filmmakers Dr Tasha Philips and Lawrence Eagling