Season 1
- 1The Fourth Floor Window31 May 2022
- 2The Bulletproof Oligarch31 May 2022
- 3Dial T for Traitor7 Jun 2022
- 4The Fourteen7 Jun 2022
- 5Last Exit To Paris14 Jun 2022
- 6The Reckoning14 Jun 2022
Investigative reporter Heidi Blake receives a tip on the death of a multi-millionaire property tycoon, leading her to uncover a web of death that entangles Russian oligarchs, 10 Downing Street and Washington, D.C. Set across Vladimir Putin's two decades in power, Once Upon a Time in Londongrad charts how the UK became reliant on Russian money and missed opportunities to contain the Kremlin.