The co-pilot jumps out to test the snow pack. finally, we put down. we are the first people to ever visit here. >> no one has ever been here before. we're the first people. >> no one has ever been here, really? >> we're the first to walk here. >> we're here to see something extraordinary. greenland's retreating ice has revealed a new island. in 2005, you came here. you were on a ship. >> yes. >> when did you realize, wait a minute, this is an island, this is not part of the mainland? >> we sailed into the peninsula. as we sailed into the base and kept finding open water, i became disoriented. ...