S4.E5 ∙ Vitosha

A young filmmaker makes a documentary about the life of woman living in the streets of Mexico City.

I'm Not Ashamed ... from despair comes hope This is not your average rehab -- nine months at a ranch restoring their lives after drug or alcohol abuse. At Green Oak Ranch, men and women receive an unconventional form of therapy such as caring for abandoned animals; baking breads and cakes; writing songs and composing music about their addiction; and learning new social skills and spirituality to have a new sense of hope. This movie follows the journey of three groups of people: the animal caretakers, the bakers and the songwriters. 10 recovering addicts and alcoholics, 9 months in rehab ... see how they fight for their new life!

West Street is in Dujiangyan City, in the Sichuan province in the southwest of China. Its history goes back more than 2,000 years. Debuting director shows us the old West Street community, in this first part following the last days of Grandma Jiang. The everyday conversations she has with the filmmaker about her health and children turn out to have a tragic subtext. THE VANISHING SPRING LIGHT is a film about love and loss within a family, about obligations and blood ties, about guilt, change and fate.

This fascinating two-part programme explores cutting edge research surrounding the brain and its ability to function. In part one, two renowned neurologists are working to understand the brain's "plasticity" and introduce us to a woman who functions well with literally half a brain and a blind professor who learns to "see" with his tongue. Part two explores the brain's elusive capacity to create and store memory, as seen through one man who remarkably remembers every single detail of his life, and an athlete whose memory was wiped clean following a tragic accident.

In a world full of rotting flesh, the only immune survivor spends his life searching for a cure to this epidemic.

Change is racing down the streets of Havana, where Cuba's top underground drag racers struggle to prepare their classic hot rods for the first official car race since the Revolution.