Professor Ilyin and FSB colonel Lozovoy are conducting an experiment in a place where historian Martin Gallus believed to be a field of battle between a Polish king and the White Army. Several people are caught up in the incident.

Golenko and Malinin are delivered to a local hospital. A local police officer arrives to the hospital, looking for Golenko. However, Golenko is able to escape before Brazhnik and Nikolaeva arrive.

Thomas becomes a consultant to the criminal brigade of Aix-en-Provence, working alongside Eric and his investigating team.

A ghost from Thomas' past reappears, but he must focus on solving the circumstance and reason for the mysterious death of a young woman, Geraldine Lepers, from poisoning.

The dead body of a young women is found, in her arms is a baby, alive and kicking.

Louise is enraged to discover that Thomas and Eric have ignored her instructions and have quietly continued their own private investigation of Patrice Durcret.