Anthony Horowitz said London was the perfect setting for this drama and wanted to make full use of it.
Filming at bedale road harold hill in sept 2015.
Filming at The Olympic Park Velodrome on 20th September 2015
Filming in Canary Wharf on the 18th October.
Mark Bonnar (Peter Mayhew) & Jordan Long (Jerry Clarke) also worked together on Unforgotten (2015) as Colin Osborne & DS Murray Boulting respectively.