The episodes come in pairs. The odd episodes focus on the police's perspective, while the following even episode tells the same time span from the standpoint of the victims and hostage takers.
The odd episodes were written by Jonas Geirnaert and directed by Gilles Coulier, the even ones written by Julie Mahieu and directed by Dries Vos.
Jonas Geirnaert and Julie Mahieu met with real hostage negotiators and victim support personnel. They tried to stick to their actual working methods as closely as possible. Although in real life, there are usually at least 6 people inside the negotiation van.
Eric Van Der Sypt is the real spokesman for the Federal Prosecutor's Office who agreed to take up a cameo as himself.
The show has been aired on various platforms in over 90 countries
The version for German television (ZDF neo) has 10 (longer) episodes. Thus, the alternating point of view for each episode doesn't apply.