After finding a frozen body during a drug-related chase at an outdoor market, Inspector Carlo Guerrieri fixates on finding a man he saw at the scene.

A breakthrough in the case leads Carlo and Malik to a community of immigrants living in an old factory. Malik goes on a risky mission alone.

As the team investigates the murder of a young woman found inside a piece of luggage at the airport, Carlo contends with buried secrets from his past.

The hunt for a killer who stabbed a nun inside a sex shop takes a perilous turn. Back at the station, the team meets Santagata's successor.

One mystery leads to another when DNA from the body of a recently murdered woman is traced to a man who's been dead for months. Guilt weighs on Alba.

After Alba finds a young man's body in a banged-up car, Carlo spots a familiar name among the victim's belongings. Malik reconsiders Carta's request.

While Malik juggles his secret assignment and a homicide at a jewelry store, Alba realizes she can't hide her true feelings from Riccardo any longer.

An unsettling discovery stokes tensions between Alba and her father. A woman receives a graphic video on her phone showing her husband being murdered.

Carlo defies Carta's orders while investigating the death of an heir to a pasta empire. Meanwhile, Malik debates whether to hand over the bullets.

Desperate to help her dad, Alba reaches out to Riccardo. Cantabella finds himself in hot water after subduing a paranoid man wielding a broken bottle.

As the team races to connect the dots between all the players in the Bosca case, a new crisis forces Carlo and Malik to work together once more.