Ben Gaunt is twenty six and a recently qualified teacher who is presented with the opportunity of a lifetime.

As a talented and experienced caver he has been chosen to join an international expedition to explore a newly discovered underground river system, one thousand feet beneath the jungle floor, in the remote central highlands of Papua New Guinea.

The Kanak is a majestic limestone cave system, carved out by a vast river over countless millennia and offers real excitement for all the, adventure-junkie, team members until disaster strikes.

One slip and Ben is swept away...