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As the expedition team near the end of their journey across Micronesia, it's a race against time for the extreme deep divers as they continue their search for new species. As Kate Humble explores the Rock Islands of Palau, Mike DeGruy embarks on a unique training programme. The Newtsuit is an incredible feat of submarine engineering - a bright yellow one-man submersible that Mike has to master before he can venture even deeper into the Pacific abyss.
Stars:
![](https://image.tmdb.org/t/p/w300/hGHlpYk33xlRHSzK7T2Fg4PV10R.jpg)
![](https://image.tmdb.org/t/p/w300/fp5FsJDYOZUTdkL3nrvehS2iSVm.jpg)
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Other episodes for this season
![The Ghosts of Chuuk Lagoon](https://image.tmdb.org/t/p/w300/wvgnTIIVzqNBWEguf6EZIcjXhVV.jpg)
![In Search of Giants](https://image.tmdb.org/t/p/w300/fp5FsJDYOZUTdkL3nrvehS2iSVm.jpg)
![Into the Abyss](https://image.tmdb.org/t/p/w300/HCR4Y6qcbCemtOZe3VqqOhVzYW.jpg)