Observing children growing up in radically different cultures around the world, comparing them with children who are growing up in Britain. In the first episode, twin doctors Chris and Xand van Tulleken set out to explore whether the decline in children's freedom is affecting their ability to learn the skills they need for healthy development. They challenge a group of British children aged four to seven years old to travel across London and catch a bus to the London Eye, all without their parents

S1 Ep1