A mother and her daughter flee Mexico and assume new identities in Madrid. The police investigate a gruesome murder. A terrorist attack occurs in Spain.

Mónica worries about Natalia's whereabouts, while her daughter tries to give her a clue that something is wrong. Daniel contemplates his job.

Eli confides in Humberto about why she's fighting with Natalia. Daniel turns to his former partner for help in finding Mónica's daughter.

Alex becomes suspicious of Daniel's intentions. Mónica investigates on her own. Alberto attempts to calm Eli down about Natalia's disappearance.

Mónica gets into trouble while searching for answers about Natalia. Alberto worries about what Eli will do next.

Eli feels threatened. The detectives' line of questioning puts additional pressure on Alberto. Natalia meets more of her kidnappers.

Mónica and Daniel discover where Natalia was sent. Urrutia struggles to believe the latest suspect in the Prats case.

Velasco grows suspicious of Urrutia after an incident involving Alex. Eli seeks solace with Humberto. Mónica and Daniel arrive in Mexico.

Mónica and Daniel confront the orchestrator of Natalia's kidnapping. Urrutia makes a startling discovery. Alex fights for his daughter's life.