Ex-military tough men Paul de Gelder and James Glancy are back for a second round of Sharkwrecked. This time they’re off the remote islands of Palau, in the western Pacific, reliving what it was like for WW2 airmen shot down in these waters.

Parachuting into the ocean, their only chance of survival is to make it back to shore. Currents and large swell pull them offshore and bring on severe seasickness and diarrhea. With shark numbers building, it’s their toughest challenge yet.