The title of the show is pretty good; they shouldn't be alive (actually, only 2 of 5 survived I think)... Did anyone else watch the first episode about the folks stranded at sea? Can someone explain why one of the crew worked so hard to get the liferaft free from the deck of the sinking sailboat, got it into the water, and inflated, swam to it, was holding onto it, and then decided to swim away from it?

He left the covered, off shore life raft, equiped with EPIRB, rations, water maker, signaling gear, fishing kit, FAK, etc... to swim to the open and empty inflatable Zodiac that someone else had managed to get off the ship before it sunk. Eventually, they all end up in the Zodiac.

The whole crews survival chances were reduced dramatically by deciding to let the well provisioned lifeboat drift away as they went into this unequipped zodiac. I had a few distractions during the show, there must have been more to this decision?