Four marine experts explore the planet's greatest wilderness - the oceans. They reveal the hidden stories of the deep through archaeology, geology, marine biology and anthropology.

Oceans is an eight-part series on BBC Two, which seeks to provide a better understanding of the state of the Earth's oceans today, their role in the past, present and future and their significance in global terms. Paul Rose also documents some of the scientific observations his team made as a feature for BBC News.