S4.E2 ∙ Inside Britain's Dog Fighting Gangs

Chris Tarrant goes on a personal journey to explore the darkest chapter in the history of the railways, their role in the Nazi Holocaust of WWII. Traveling through three countries, Chris explores the history from the first anti-Jewish laws and the Nazi's quest to build the world's most powerful railway of war - to the eventual use of that railway network to transport millions to their deaths. Chris meets holocaust survivors as they retrace their wartime journeys, including Helga Weissova, who as a young girl recorded her experiences in the horrifying Terezin Ghetto with drawings and in her diary. In Poland, he meets Arek Hersh, a former child slave who escaped death countless times in the Ghetto and at Auschwitz where he and Chris travel together to face up to the true horror of the Holocaust.

Since 2002 more than a trillion dollars have been injected into Afghanistan. This film examines the counter-insurgency/culture campaign that the Westeners waged. Told through the eyes of the country's first-ever heavy metal band.

Honor Flight chronicles a community coming together to honor World War II veterans. The film follows a team of Midwest volunteers as they race against the clock to send every local WWII veterans to see the memorials built in their honor.

Jonathan Meades explores the architecture of Nazi Germany, from its holiday camps to its concentration camps.

After four years of war in Iraq, people from around the world are heading out to help with the IDP/refugee crisis.