At the show's beginning, I noted the 80-pounds of water in the water tank. This is slightly less than 10 gallons for two men, for a four day sail. Even if they had not shipwrecked, it seems to me that they did not have enough water. Maybe they were planning to replenish during their trip? Too bad all of their water was in one container too. Sounds like they kept each other alive. If either had been alone, they might not have made it. Seems to speak to a positive survival attitude.