Hitler Gang

This series looks at the many people who chose to collaborate with the Nazis. It is at times, uncomfortable viewing, but it's also totally absorbing too. It’s a simple question. “How could they have done it?” How could anyone have collaborated with the Nazis? And yet so many did. From Pierre Laval in France to Chaim Rumkowski, who ran the Jewish administration in the Lodz ghetto, from Quisling to the IRA, from the 1600 Belgians who served in the SS to the Grand Mufti of Jerusalem - all worked with the Nazis.

The Red Bomb chronicles Russia's staggering transformation from lagging also-ran into nuclear superpower, as the USA and USSR battled it out for possession of the ultimate weapon. 90-year-old Yuly Khariton is a reclusive man with gentle eyes, who appears to spends many an evening lost in thought, as his female companion plays old songs on the piano. But Khariton's simple lifestyle belies his unbelievable past, and the part he played in the nuclear arms race – a vast and complex web of intrigue that was the crux of the Cold War.