Tre norske ex-soldater, Charlotte, Adrian og Viktor, har satt seg som mål å være de første menneskene som kommer seg levende gjennom et uutforsket grottesystem i et øde fjellmassiv. Fulle av eventyrlyst tar de fatt på den krevende nedstigningen, uvitende om marerittet som venter dem nede i det trange, mørke dypet.

The deep waters of the Southern and Pacific Oceans still hold many mysteries. Two international teams of scientists set out to explore the icy depths of Antarctica and the abysses of the Mariana Trench. Filmed for the first time, creatures seemingly from another galaxy cohabit with champions of survival in extreme conditions.

Peter Snow presents highlights from today's three deep-sea dives around the world. In 2002 BBC organized three concurrent dives , first in Monterey Bay where unmanned submersible is lowered into underwater canyon which is over mile deep. Second dive is in Grand Cayman where submersible Atlantis will explore life at the spectacular Cayman Wall , Kate Humble reports . During the dive, the crew used bait to attract a deep-water giant, the six-gill shark. Third dive takes place in middle of the Atlantic 1200 miles west of Portugal, which is also deepest of the three dives, divers will descent in Russian submersible Mir from research vessel Keldish and the Mir will dive in the bottom of the ocean in 2300 metres .

Day of fulfilled wishes. Dream of young actress Elísabet may become true, completely out of the blue. Something so sweet to think about, and yet - why all this shivering? --- Careful now, darkness falls.