Port Lockroy on Goudier Island in the British Antarctic Territory is the site of one of the world's most remote post offices, which has a staff of four and is open to visiting tourists during the Antarctic summer. They share the neighbourhood with more than 3,000 gentoo penguins, and this documentary follows the trials and tribulations of the birds as they try to raise their chicks in these unusual surroundings. Juliet Stevenson narrates.
