After a whistleblower is murdered under police protection, the team are called in to make sure the second one makes it to court to testify and take down a criminal empire. Van der Valk is conflicted when he finds out the protection officer in charge of the murdered whistleblower is a former flame of his.

The investigation continues after a whistleblower is murdered. The team are offered the chance to work with the head of the criminal empire to find the killer. Will Van der Valk take the opportunity, or go it alone

The team are called in when an environmental campaigner is murdered on the eve of a global conference. One of several potential suspects would appear to be Cobie Stegenga, a famous singer who went missing, presumed dead. Van Der Valk connects with Cobie's father to find out the truth.

The investigation continues after an environmental campaigner is murdered. After another shocking murder, could Cobie now be the prime suspect

The team are called in when a scientist researching a potential breakthrough in the treatment of cancer, is found dead. Van der Valk's ex-flame, Kalie Tenkers returns to help the team investigate why he was killed and if there is a link is to pharmaceuticals billionaire, Freddie Klink.

The investigation continues after a scientist is killed. After more shocking murders, seemingly by a professional killer, the team move in on billionaire, Freddie Klink. Is he the mastermind, and could he be trying to stop a medical breakthrough from becoming public