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Episode 4

Episode 4 of 8

The team makes a dangerous dive into a 'black hole' in the Atlantic Ocean to discover how different earth's earliest oceans were 3.5 billion years ago.

The team explores a corner of the Atlantic Ocean. This ocean is the youngest of the great oceans and critical in influencing our climate.

Expedition leader Paul Rose, environmentalist Philippe Cousteau Jr, maritime archaeologist Dr Lucy Blue and marine biologist and oceanographer Tooni Mahto make a dangerous dive into a 'black hole' to discover how different our planet's earliest oceans were 3.5 billion years ago. They dive one of only two places on the planet where the oldest life form on Earth still survives: stromatolites, the creatures responsible for transforming our ancient oceans by producing oxygen.

They brave waters teeming with sharks to act as human bait in an experiment to test a shark repellent. They also investigate how the Atlantic has been invaded by the poisonous lionfish, which is decimating local fish stocks and spreading fast. And they try to identify a lost British warship, the HMS Southampton, which was shipwrecked after winning a battle against an American vessel in the war of 1812.

1 hour

Last on

Thu 16 Aug 2018 16:15


Role Contributor
Presenter Paul Rose
Presenter Lucy Blue
Presenter Tooni Mahto
Presenter Phillipe Cousteau
Director Penny Allen
Producer Matthew Gyves
Series Producer Helen Thomas
Executive Producer Anne Laking


  • Thu 27 Nov 2008 20:00
  • Sun 30 Nov 2008 17:00
  • Wed 17 Dec 2008 02:15
  • Thu 22 Jan 2009 17:00
  • Mon 20 Jul 2009 19:00
  • Sat 14 Apr 2012 20:15
  • Sun 29 Jul 2012 15:25
  • Sat 29 Jun 2013 20:00
  • Sun 30 Jun 2013 02:35
  • Fri 27 Sep 2013 14:45
  • Tue 14 Mar 2017 00:25
  • Thu 16 Aug 2018 16:15

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