While en route, the transport vehicle loses sight of, and radio contact with, the escorting police car due to fog.

When Martín follows, he finds Montesino apparently dead, and the police car overturned, with the officers killed.

Meanwhile, Montesino has revived and pursues the truck, after finding Miguel's jeep with photos of his missing daughter.

Martín interrogates Nano about the situation; he claims ignorance but mentions someone named Chino, his childhood friend.

Miguel drives the truck onto a frozen lake and shoots the ice, causing the vehicle to sink, while he walks away.

Miguel reveals his motive for seeking revenge; he had allowed his young daughter to visit a fair with a friend.

Nano and Chino (the man being pursued in the opening scene) got her drunk and, after raping her, tortured her until she died.

Martín intervenes, shooting Nano in the foot and hand, demanding the location of Miguel's daughter.

In the final scene, Martín collects his belongings from his locker at headquarters and walks away from the building, and presumably also his police career.