2. The Bitcoin Killer

Not all is as it seems with Dr Ruja's revolutionary cryptocurrency, OneCoin.

• 35 mins

3. More Than Just a Coin

Dr Ruja's hold over OneCoin investors is far stronger than we thought. Why?

• 40 mins

4. Miss OneLife

Jamie and Georgia arrive in Bucharest for their first OneCoin event. Who might be there?

• 38 mins

5. What Dreams May Come

One of the world's highest-earning MLM'ers and former top OneCoin seller, agrees to talk.

• 61 mins

6. The Überflieger

A factory in Germany and a cryptocurrency scam. Two different worlds, one familiar story.

• 39 mins

7. In Plain Sight

Could Dr Ruja and the missing billions be hidden in plain sight?

• 43 mins

8. The Technology and the Dream

The final episode takes an unexpected twist.

• 60 mins

9. Follow the Money

The search for Dr Ruja is back on. A lot has happened since Episode 8.

• 45 mins

10. The Dubai Files

The search for Dr Ruja gathers pace.

• 45 mins

11. Operation Satellite

How mysterious friends in influential places may have helped Ruja stay one step ahead.

• 47 mins

12. Wanted: Dead or Alive?

The search for Dr Ruja Ignatova takes an unexpected turn. Has she been murdered?

• 33 mins