video: Episode 1, Part 2, starting at 24:15.
Sandel introduces the principles of utilitarian philosopher, Jeremy Bentham, with a famous nineteenth century law case involving a shipwrecked crew of four. After nineteen days lost at sea, the captain decides to kill the cabin boy, the weakest among them, so they can feed on his blood and body to survive. That was an actual case, but think about today: Suppose four shipwrecked sailors are stranded at sea, without food or water. Would it be wrong for three of them to kill and eat the weakest one, in order to save their own lives?