Final duel between Elisabeth and Sarah. The policewoman will reveal who the 5th horseman is.

The Death Rider manifests through the Particle Accelerator. At the same time, Franck finds his brother and Elisabeth shows her true face. She flees CERN and Sarah sets off after her.

Franck and Elisabeth go to CERN, which seems to be the next target. There they find a mad scientist who turns on the particle accelerator. At the same time, Notzing attacks Sarah.

Franck, Sarah and Elisabeth are pursued by Notzing, who has gone mad. Sarah in turn looks through the scope and sees a black horseman about to attack a chemical lab in the area.

Our three heroes get their hands on a scope that allows them to visualize the location of the horsemen's attacks. Elisabeth claims to know who the next target will be. But she is wrong...

Sarah and Franck meet Elisabeth Brann, a theologian. According to her, Charles provoked the arrival of the horsemen of the apocalypse whose mission is to destroy the pillars of contemporary society.

Charles has disappeared. Agent Sarah Bauer, in charge of monitoring Franck, surprises him in the museum. They make a demonic discovery.

Under Notzing's orders, the brigade disposes of sarcophagi at the town crematorium. Franck Valette, the center employee, finds a mysterious book that resisted the flames and brings it to his brother Charles, who works at the museum.

A police operation turns bloody when Constable Sarah Bauer kills a crazed Federal Councilor. While inspecting the politician's house, the team unearths a macabre collection that veered into the occult.