off in the chopper 7 news chopper to perform what they assume would be a routine water rescue in morton bay. they don't have exact coordinates for the boat's location. they spot a different vessel, the water police, who are responding to the mayday call. greg hopes the water police know where the troubled boat is, but he can't confirm this by radio. >> they were on a different frequency. and we didn't have that frequency with us. so that added to the problems. we couldn't see anything up ahead where they were heading, so we turned around and went back a little ways. and, actually, then we found the yacht. it was in a precarious position. >> after two days navigating stormy seas, skipper malcolm dickson is trapped in morton bay's shallow waters. his girlfriend and her small child huddle below deck as malcolm battles the waves. >> it was just disappearing in behind these swells that were just enormous. >> from his vantage point in the air, greg sees the yacht is in real trouble. the front sail is in shreds and the engine has failed leaving the skipper unable to maneuver. then things get worse