After a drone attack on a power plant plunges the city into darkness, Billie and Sam discover it's just the first step in an alarming master plan.

A successful blogger and her daughter are gone. Unit 42 resumes service and initiates a frantic search for these two women, victims of their overexposure on the net. What if our digital life was as dangerous as our real life?

Continued from Episode 1. Unit 42 is at the footsteps of the woman who kidnapped Léa, an adopted girl. The investigation is complicated when they learn that the abductor is armed, also holds Billie, and that Lea's life is in danger.