Tom takes Chris diving on his 12th birthday, but has to go on a rescue soon after. Tom develops the bends because his helicopter has to fly at 20,000 feet to get over a storm. Tom is taken to a hospital, where he spends a few hours in a re-pressurization chamber. After getting out of the hospital, he is put on leave for a few days but is hanging around Search and Rescue when a call comes in about a trapped diver. Off he goes, even though he is not fully recovered.