Teresa Mendoza recibe una llamada que le da la noticia de que han matado a su marido y ahora van a por ella. Viendo su vida en peligro, Teresa comienza una huída frenética para salvarse de la muerte. Busca ayuda en Epifanio Vargas, capo del cartel de Culiacán, quien le dice que se marche a España para tratar de esconderse. Aterriza en Melilla, donde comenzará a trabajar de camarera en un club de alterne, y donde conocerá a Santiago Fisterra, un hombre que va a cambiar su vida para siempre.

A planner saves Teresa's life, and she makes a deal with Epifanio for El Güero's information, but death and suspicions surround her, and she is set up by someone she doesn't know.

Promising to reveal the location of the planner, Teresa persuades Willy to take her to San Diego, where she discovers El Ratas has followed her.

Teresa leaves Mexico to try her luck elsewhere, and arrives in Spain in the midst of a sexual game intended to get El Güero out of her heart.

A fraught Teresa ends up in the hands of the police for drugs due to the vendetta of a woman who cannot resist her beauty; she might be able to save herself by selling her body.

Teresa must humiliate herself to escape being deported by Céspedes, although he decides to collect Sheila's debt with a vengeance.

Teresa seeks revenge with her own hands and shows Sheila just what The Mexican is made of, when Santiago is about to be set up by the mafia, who is looking for payback for his betrayal.

Teresa succumbs to desire for Santiago and tries to erase the memory of El Güero with his kisses, and realizes that, for her, history repeats itself when it comes to men.

Teresa returns to the trafficking nightmare with Santiago and decides to leave him for good because of it, when she confronts Dris for helping a friend.

Santiago gambles with his life and accepts a deal that hurts him financially, while Fátima faces the cruelty of her lies in search of a lost son.

Santiago risks his life for Teresa and ends up killing Josef to save her, while Fátima must take back her son and flee Morocco with him.

Teresa proposes turning Santiago into a drug trafficker, when Col. Abdelkader receives an unexpected visit from The Mexican.

Teresa starts narcotics career, since she must start dealing hashish in order to save her life, not knowing that her ambition will be her doom, along with Santiago.

Santiago is the victim of Dris's envy, who decides to rat him out to the Moroccan police, but it is Lalo who is tortured for information.

A promise of love seduces The Mexican, who decides to leave her life behind and give herself to Santiago and the security of joining him in life and death.

Teresa and Santiago start their first mission, and without knowing how, they evade the law with a shipment of cocaine while being watched from the air...

Teresa is afraid of admitting love, even though Santiago shows her how he feels through his jealousy and a proposal, The Mexican almost loses her chance of starting over.

Teresa loses again. She knows that love only brings death for the man that she wants at her side, and Santiago is now facing that fate because of his trafficking.

Teresa earns respect in jail by defending herself in a fight for her life, while she finds an enemy in Makoki who could make her life very difficult.

Teresa faces death in a fire started by Makoki, all for a debt of honor and a fight over a sought-after inmate.

Teresa is haunted by crimes she didn't commit, and now is blamed for the fire and death of Adriana, all for a duel of loyalty and strength in the heat of sexual urges.

Teresa is released from jail but gets mixed up with Patty when she tries to seduce her with ambition and the promise of putting an end to her bad luck.

Teresa and Patty join forces to sell her stash and start the climb to the top; they must do business with the Russian mafia.

Teresa makes a deal with the Russian mafia when her audacity helps protect Oleg and his drugs; she doesn't know that this is why she puts her own loyalty at stake.

Teresa deals in hashish, Lalo's freedom and Fátima's peace of mind, all for a lucrative arrangement with the Russians and personal vendetta.

Teresa's enemies meet their end, thanks to a dangerous alliance that's profiting from Santiago's death and The Mexican's past.

Teresa tries to clear her name but her past continues to haunt her, and while some die at her orders, others rise from the ashes.

Teresa is the victim of blackmail by new enemies who threaten to kill her people, while Dris tries to save his life by turning to Epifanio.

Teresa sees Fátima die in her arms, an innocent victim of The Queen's enemies and past.

After getting information out of Dris, Ratas kills him and hangs him on a bridge in Mexico.

The death of Dris is a clue that casts suspicion on Epifanio Vargas, while Teresa plans on traveling with a cartel that will put her face-to-face with her enemies.

Teresa makes enemies of El Gallego's enemies in the midst of a trafficking deal with drug lords, when the debts of the past put her on a fatal path.

A fatal Mexican game ends up being Teresa's revenge when Oleg gets his hands on her enemies while she closes a drug deal.

Teresa has the lives of her enemies in her hands, and although the pain from her past compels her to kill them, Oleg convinces her not to get her hands dirty.

El Ratas is willing to kill Teresa, but his mistakes will be the death of him when she wants to kill him with her own hands.

Pote saves Teresa's life in an explosion ordered by the Pernas Clan, who want to get rid of The Mexican.

The Pernas Clan loses its war with Teresa when she finds out that they tried to eliminate her, while Teo tries to win her heart.

Teresa gets carried away by desire and confesses that she's attracted to Teo, while someone close is stricken with jealousy.

Teresa succumbs to her desires, without realizing that Teo has a double life that she might get mixed up in.

Someone tries to take Teo away from Teresa with an attempt on his life, all for a seductive opportunity that appears to take on another life.

The attempted hit on Teo arouses Teresa's suspicions, and she is willing to take justice into her own hands in order to find out who informed on her.

An alliance of hate and ambition is revealed between Eddie and Eugenia by their efforts to kill Teo, but Teresa is onto them.

Teresa decides to avenge Teo, and it is Eddie who must pay when Teresa confronts Eugenia on her lies and ambitions.

Teresa decides to join her enemy due under the pressure of their attacks, but there are ulterior motives for the deal.

Teresa reveals Eugenia's crimes, which leads Teo to file for divorce, while The Queen throws her own party.

Eugenia challenges Teresa at her party and threatens Teo for leaving her, without imagining that The Mexican has proof of her schemes.

Eugenia can't handle the pressure and takes her own life after Teo decides to leave her for good because of her personal vendetta, which almost leads to his death.

Verónica doesn't fall for The Queen's trap, and while she looks for traitors, news of a suicide might lead to the mafia's defeat.

While Teresa is carried away by her sexual desire for Teo and tries to make a fresh start, an infiltrator marks the beginning of the end for The Mexican.

Teo betrays Teresa and becomes a rat for the DEA, while The Mexican plans a shipment for the Russians.

Teresa is blinded by love, but her allies aren't, and Teo is beginning to feel their eyes upon him, without knowing that a new Aljarafe is on its way.

Teo cheats on Teresa with his lover, when The Mexican goes after the DEA rat.

Teo's betrayal is finally exposed to Nino when a fatal accident claims Lupe or Patty as its victim.

Lupe loses her life to Patty's accident, when Teo finally eliminates the sole witness who could expose him to Teresa.

Life is cruel yet again to Teresa when Patty kills herself to get out of the way, revealing that the DEA is hot on her heels.

Teo's lies and betrayal become a double-edged sword, because even though he tries to hide his alliances, Teresa's words betray suspicion.

Teresa receives two major blows: Teo's betrayal ends to a new love without her knowing it, and the past lies of the man who she believed to be her godfather are revealed.

Teo's game is exposed, and now it's Teresa who plans her own trap, while he tries to escape from the web of his own lies and deceit.

Teresa's revenge means the end for Teo, the father of her child; the police lose the last ace up their sleeves when they lose track of their key witness.

Teresa escapes Spanish justice with the help of the Russian and Willy, when Epifanio decides to confront the only threat that could put an end to his political career.

Teresa escapes the Spanish police while death stalks her in her own country; Epifanio must deal with the revenge of El Ratas at the last minute.

Teresa fulfills her promise of revenge and sends Epifanio Vargas, the great traitor from her past, to jail, while she starts a new life without leaving a trace.