Mini-series finale. Terrified of getting the virus too, Lise is starting to break down. But Clovis and she need to keep going, as Maya and Lily are still missing and the epidemic has brought the whole city on the brink of chaos.
Even though a heart-wrenching death leaves the team grief-stricken, they still have to deal with the epidemic which is spreading fast. And as Milanian is finally arrested and questioned, Tom is hospitalized urgently with a fever.
As the city of Annecy enters a state of quarantine, panic is growing and incidents of violence multiply. Meanwhile, Lise and Clovis discover a surprising link among the first victims of the virus and the death of a little girl.
Lise and Clovis prepare to search a housing project where numerous cases of the virus have been reported. As the existing vaccines are very few and ineffective, their only chance at stopping the epidemic is to track down Milanian.