Episode two looks at the latest research into how we build social relationships. The team set up a series of experiments about how babies become social and learn to relate to the people around them. Starting with a fundamental question – how do we make our very earliest connections with others? Do we have to learn or are we programmed to bond from birth? To find out, the show heads out to the home of a newborn baby, just one week old. Episode 2 of 3.