A deadly attack on the safe house of key witness Max Klaassen puts ALPHA 00 on edge: while one of their own people disappears without a trace, Diana's team must race to unmask the true instigator behind the Fontijn case and prevent new victims.

A failed night-time raid on the seemingly good accountant Max Klaassen reveals an explosive conspiracy, leaving ALPHA 00 caught between the underworld, the intelligence agency, and a missing ex-colleague, each with their own reasons for silencing Max.

A routine surveillance at Lelystad Airport reveals a female helicopter pilot being forcibly deployed for a violent operation, forcing ALPHA 00 to prevent both a kidnapping and an imminent armed attack within hours.

A heavily armed intruder takes twelve young military applicants hostage in a remote fort, forcing ALPHA 00 into a nerve-wracking negotiation operation in which the hostage-taker does not shy away from brutal violence.

An undercover transaction for heavy munitions at a remote holiday park suddenly goes off the rails, forcing team leader Diana and her ALPHA 00 unit to act quickly to retrieve their infiltrator alive.

When a terrified girl calls 911 from a forest, the ALPHA 00 team is called in for a large-scale search, which quickly escalates into a murder investigation and the reopening of a fifteen-year-old missing persons mystery.