British comedy duo Ricky Gervais and Stephen Merchant send their simple and closed-minded friend Karl Pilkington on a trip around the world to experience a variety of people and cultures.British comedy duo Ricky Gervais and Stephen Merchant send their simple and closed-minded friend Karl Pilkington on a trip around the world to experience a variety of people and cultures.British comedy duo Ricky Gervais and Stephen Merchant send their simple and closed-minded friend Karl Pilkington on a trip around the world to experience a variety of people and cultures.