Kim Philby, Super Spy: Part One, Codename Sonny

Born to the British upper-crust - devoted to the Revolution. Harold 'Kim' Philby was the ultimate Soviet superspy.

For decades, Philby sold secrets to the Russians from inside the upper echelons of MI6. Inspired by an unpublished memoir recently acquired by Spyscape, we bring his fascinating story to life.

In Part 1, Rhiannon Neads details Philby's rise to the top - and the fateful decisions that will lead to his undoing.

From SPYSCAPE, the HQ of secrets. A Cup And Nuzzle production. Series producer: Joe Foley. Produced by Justin Trefgarne. Music by Nick Ryan. Kim Philby voiced by Dominic Mafham.