In the Antarctic, every March since the beginning of time, the quest begins to find the perfect mate and start a family. This courtship will begin with a long journey - a journey that will take them hundreds of miles across the continent by foot, one by one in a single file. They will endure freezing temperatures, in brittle, icy winds and through deep, treacherous waters. They will risk starvation and attack by dangerous predators, under the harshest...