Several references to previous Guy Ritchie's films can be seen throughout this episode. The shotgun that Tommy brings to Edward appears in Lock, Stock and Two Smoking Barrels, and the barbeque is a reminder from the barbeque in The Gentlemen.
The passport belonging to Jethro is Polish.
The helicopter which transports Eddie is an Agusta A109S Grand. The registration number can be seen beneath the rotor and identifies it as the exact helicopter which appears in several episodes of '3 Body Problem'.
Kaya Scodelario, as Susie Glass, uses the term "in the post" which means on the way.