The French network TF1 has announced that the new season will debut on Wednesday, November 11, 2026, starting at 9:10 PM. This marks a significant moment for viewers who have been patiently awaiting new cases for the Behavioral Analysis Unit (BAU) on their local airwaves. The eighteenth season, described as "inédite" (unseen) in France, will plunge viewers straight into high-stakes investigations.
The premiere night will feature two back-to-back episodes. The opening episode immediately sets a grim tone, with the discovery of a body washed ashore on a Maryland beach. Autopsy results reveal a mysterious and deadly threat, bearing the signature of a killer responsible for four previous victims. The BAU team will find themselves in a desperate race against time to trace the source of this danger and prevent further casualties.
The second episode of the evening deepens the mystery as the team investigates disturbing videos linked to a serial killer known as 'Le Gardien du Zoo' (The Zoo Keeper). This elusive criminal is a member of the notorious Sicarius criminal network, and his sudden re-emergence after a long period of inactivity puts the team on a potentially perilous path. Agents must meticulously analyze these recordings to understand the killer's modus operandi and halt his reign of terror. It is within this episode that a character, a stalwart presence since the second season, tragically meets their demise under harrowing circumstances, a loss that is set to profoundly impact the lives of the remaining team members, particularly one of its heroines.
However, amidst the sorrow, there is a beacon of hope and nostalgia for long-time viewers. The subsequent week, in the third episode of Season 18, fans will witness the grand return of Dr. Spencer Reid, portrayed by actor Matthew Gray Gubler. Reid's comeback is prompted by the funeral of the fallen colleague, providing a poignant opportunity for him to reunite with his former friends and colleagues. This marks Matthew Gray Gubler's first appearance in the "Criminal Minds" universe since the conclusion of season 15, making it a truly landmark event for the franchise's loyal following.
The announcement, initially reported by French media outlets like Allocine, has ignited excitement among the dedicated fanbase. The return of "Esprits Criminels" on TF1 not only brings new cases and challenges for the BAU but also promises emotional reunions and dramatic farewells, ensuring that the two-year wait will be well worth it for French audiences.