Karl Pilkington goes back on the road in search of the answers to more of life's big questions. He begins by pondering the point of art.

Karl tries on toupee's and ladies' clothes as he explores the factors that shape our identity.

Karl meets a group of vigilante superheroes in San Diego as he goes in search of people with unique attitudes towards life.

Karl discovers the alleged benefits of 'urine therapy' as he explores the lengths people go to in order to stay healthy.

Karl addresses the effect of waste and different peoples attitudes towards it.

Karl investigates how we should spend our limited time on the planet as he finds out what he will be like as an old man.