Identical twins are fascinating beings. They are born with the same genetic makeup and develop amazing similarities - and remarkable differences - over the course of their lives. The impressive documentation presents extraordinary pairs of twins and the latest findings from twin research.

Secret Life of Twins

High atop Mont Blanc, the highest mountain in the Alps, two individuals brave the deadly peaks and trails to pursue their personal conquests before the slopes melt away, confronting climate change and our role in its prevention.