The episode opens with Ewan McGregor and Charley Boorman riding through the sleek streets of Guanacaste, Costa Rica. To add to the excitement, the show also introduces us to Ewan's daughter, Jamyan, and the father-daughter duo are lovable to watch. The audience also gets a chance to see the Masaya volcano up close. The red lava is breathtaking and scary at the same time.

Researchers discover film footage from World War II that turns out to be a lost documentary shot by Alfred Hitchcock and Sidney Bernstein in 1945 about German concentration camps liberated by allied troops. When Allied forces liberated the Nazi concentration camps in 1944-45, their terrible discoveries were recorded by army and newsreel cameramen, revealing for the first time the full horror of what had happened. Making use of British, Soviet and American footage, the Ministry of Information’s Sidney Bernstein (later founder of Granada Television) aimed to create a documentary that would provide lasting, undeniable evidence of the Nazis’ unspeakable crimes. He commissioned a wealth of British talent, including editor Stewart McAllister, writer and future cabinet minister Richard Crossman – and, as treatment advisor, his friend Alfred Hitchcock. Yet, despite initial support from the British and US Governments, the film was shelved, and only now, 70 years on, has it been restored and completed by Imperial War Museums. This eloquent, lucid documentary by André Singer (executive producer of the award-winning The Act of Killing) tells the extraordinary story of the filming of the camps and the fate of Bernstein’s project, using original archive footage and eyewitness testimonies.

Seven years have passed since Antony's departure from Rome, and the former commander, dissipated and debauched - held in thrall by the charms and sexual prowess of his new bride, Cleopatra, withholds precious shipments of grain from Rome, where people die in the streets from hunger.
Unable to incite a war with Antony and Egypt without committing political suicide, Octavian sends Atia and Octavia to Alexandria to mediate and reason with Antony; a strategy which proves predictably unsuccessful.

Follow the Manhattan-based Colin Beavan and his family as they abandon their high consumption 5th Avenue lifestyle and try to live a year while making no net environmental impact. The documentary follows this family during their year-long experiment to reduce their carbon-footprint.

There are just 5 games left of the season. Arsenal are currently sitting 4th in the Premier League after big wins against Chelsea and Manchester United. As the season draws to a dramatic close, Arsenal find their bitter North London rivals Tottenham Hotspur standing between them and a Champions League spot.

The second part, Nothing, explores science at the very limits of human perception, where we now understand the deepest mysteries of the universe lie. Professor Jim Al-Khalili sets out to answer one very simple question - what is nothing? His journey ends with perhaps the most profound insight about reality that humanity has ever made. Everything came from nothing. The quantum world of the super small shaped the vast universe we inhabit today, and Jim can prove it.