Jail awaits - Klaus Fuchs is going down. But will he take Ursula with him? British intelligence wants names. As... more

A double life implodes. Fuchs faces judge and jury, but will he confess? A future as an eminent physicist is... more

The spy catchers close in. Klaus Fuchs is caught in the crosshairs. Spymaster Ursula has outwitted the interrogators - but... more

The interrogation of a spymaster. Ursula is questioned as Klaus Fuchs returns to England. Secrets threaten to be spilled and... more

Lives on the line. The Fuchs family is drawn into the espionage as the atomic bomb project takes a deadly... more

A double life gets more dangerous. Fuchs joins America's bomb project and the race with Russia is on. But as... more

The spy meets his spymaster - presenter Rosa Ellis' great-aunt Ursula. She's a housewife and mother living in the English... more

The fate of the world is decided: Klaus Fuchs joins a top-secret atomic mission. The race to build the bomb... more

The world’s most dangerous spy? A young scientist’s journey into espionage. From a German pacifist family to a Soviet spy... more

The man who stole the atomic bomb. And why he did it. Klaus Fuchs was a talented scientist - but... more