During a home invasion, two burglars discover a child in distress and decide to alert the authorities. On examination, the boy has been poisoned and is comatose. Suspicion falls in turns on the parents, the babysitter and the burglars.

Three teenage girls, best friends against the world, are missing. Convinced the girls are in danger, Mattei triggers a kidnapping alert. But were the girls really as close as they seemed, or is the danger coming from within?

A young girl runs away to meet a man she met online, but that she has never seen. Mattei intercepts the meeting but struggles to discover the predator’s true identity. As he closes in, a link to an old case puts the team at risk.

After a long-fought custody battle, a father suddenly resorts to kidnapping and abducts his son right in front of his ex. What has driven him to such drastic measures? Can Mattei find him before he and his son leave the country?

After five years of captivity, a young girl escapes her captor. But before Mattei can move against the kidnapper, he and his team must get the girl to talk--and what she says forces Mattei to look at his own past.

When Romain darts across the road in front of his school to escape pursuing classmates, a car speeds up and hits him. The driver flees, but when Mattei and his team look into the case there’s more to unravel than just who hit Romain.