Samuel Leroy, a widower and father of three children, heads Brussels' Cyber Crime Unit. Tired of always assuming the role of perfect cop, Samuel embarks on a troubled relationship with a female prisoner he put behind bars two years ago. Meanwhile, an idealist young hacker, Billie Veber, is doing everything within her power to get back into Unit 42 from which she was dismissed on charges of treason while continuing to battle her old demons.