4/4. In the final programme of this week-long ocean health check, we find out what the future holds for the next generation of marine life and how we can help. [S]
3/4. As marine life around the world embarks on epic journeys across the planets oceans, we discover how ocean traffic, over-fishing and noise pollution could have an impact. [S]
2/4. In a race to find out what great pressures confront life in our ocean, the team continue their mission to investigate the effect human impact has had on our marine ecosystem. [S]
1/4. Chris Packham, Liz Bonnin and Steve Backshall explore our oceans and its wildlife, to find out how marine life is coping in the face of increasing environmental pressure. [S]