In the captivating three-part travel series CHRIS TARRANT: EXTREME RAILWAYS, the personable British host (Who Wants to Be a Millionaire) explores some of the world's oldest and most scenic railway journeys. Along the way, he meets fellow passengers, local characters and train drivers and engineers, and discovers more about the history, maintenance and impact of these extreme railways. Each episode is filled with incredible stories and challenges Chris and his crew must overcome.