Blue Planet Revisited säsong 1

Chris, Steve and Liz kick off an exciting new series to explore the health of our oceans from three different corners of the planet - Baja in Mexico, the Bahamas, and Australia's Great Barrier Reef.

The team continue to investigate marine life. We also go to Atlantis, a deep sea research vessel, as it launches a sub that will help assess the health of the deep ocean.