Title translation: The Royal Eyes Rest Above
At one point during the chase, they drive by a cinema prominently advertising "Hang 'Em High." As it's unlikely a normal theatre would be showing a nearly-50-year-old western and there's no payoff anywhere else in the episode, this must be assumed to be a private joke by the filmmakers.
First episode to feature Ian Anthony Dale in the opening credits as a member of the main cast.
When Layla is closing the door of her car you can see someones reflection in the side mirror.