The tension between Sara and Víctor is palpable, and Selva needs to understand what's happening between them: Víctor decided to break up, and Sara has had to accept it. The GEAS team finds Alicia's cell phone in the river next to some reeds near her house. A recording on the memory card proves Diego has been lying. Selva orders a larger area to be examined with a clearer objective: they are looking for a body: Alicia's. What was supposed to be a kidnapping may have turned into a homicide. The Civil Guard's investigation on the banks of the Guadiana River turns up a new lead: a body is found. It's that of Moisés, a Roma man well known in the town.

Mario takes his medication: he's stable and is increasingly closer to his sister. Leo realizes that, for a long time, he's been on the wrong side. Now he always meets with Nico; he's the only one he can vent his anger to: he hates that town and, above all, Aure. Sara prefers to keep her distance from Víctor. She knows he doesn't want to continue at the UCO: the cases he's worked on have ended up burning him out. That's why she requested a transfer to Monteperdido. Rita manages to free Alicia, but the effort leaves her exhausted. Alicia recognizes the area; she's on the old smugglers' route. Her father taught her everything. A few kilometers away, they'll find a town and they'll be able to help them.