8/8 The team dives beneath the polar ice cap to explore how the ice is shrinking.
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7/8 An exploration of the profound effect that man is having on the Mediterranean Sea.
6/8 The team explores the coastal waters of the Indian Ocean.
5/8 The team explores the tropics of the Indian Ocean and search for the elusive dugong.
4/8 The team makes a dangerous dive into a 'black hole' in the Atlantic Ocean.
3/8 The team explores the remote and unexplored Southern Red Sea, teeming with marine life.
2/8 Why are parts of the Southern Ocean warming twice as fast as the rest of Earth's oceans?
1/8 The marine experts carry out pioneering science on the 20-metre-long sperm whale.