<P> At the beginning of "Lauren", it is revealed that Prentiss had been a spy eight years previously, on a task force profiling terrorists; while undercover, she met Ian Doyle (an arms dealer) and became his lover . Her betrayal of Doyle led to his arrest and subsequent imprisonment, including time in a North Korean prison . Prentiss tracks down Doyle in Boston and tries to kill him, but he takes her hostage . Later, Rossi realized that she left their team meeting suddenly in order to protect them from Doyle as it was Prentiss that Doyle was after . Hotch says they will treat Doyle as an unsub and Prentiss as his victim, and profile them just as they would in any other case . </P> <P> They eventually track them down to an abandoned building in Boston and arrive with a SWAT team . Prentiss reveals to Doyle that his son, whom Doyle believed had been killed, is actually alive, and that she staged photos of executing the boy in order to get Doyle to break under interrogation in North Korea . After an intense fight, Doyle manages to stab Prentiss in the abdomen with a broken table leg . Even though she is dying, she refuses to tell him where his son is hiding, and Doyle escapes shortly before Morgan reaches her . In the hospital, the BAU team is notified that Prentiss has died . They are seen attending her funeral . The last scene, however, reveals she is alive and in Paris, where JJ meets her and gives her an envelope with "passports from three different countries, and a bank account in each one to keep (her) comfortable". </P> <P> In the season seven premiere, Morgan captures Doyle and Emily returns to the BAU to assist the team in finding who kidnapped Doyle's son . The team comes under fire from the judiciary panel for their retaliatory actions to avenge Prentiss's death, but everyone stands their ground to protect the team . Section Chief Erin Strauss later reveals to them that the committee was persuaded by Prentiss' defense and eventually decided to lift the BAU's suspensions although they will still be "keeping a close eye" on the members . Reid, who is still angry over her' death' refuses to speak to her or JJ or even look them in the eye . At the end of "Proof", Prentiss talks it through with him and they make amends . In the premiere it is also revealed that Garcia has been taking care of her cat, Sergio, and when she inquires about him, Garcia jokingly states that she wants visitation rights . </P> <P> In the season seven finale, Prentiss receives an offer to run Interpol's London office . While still pondering her decision on the offer, Prentiss decides to leave the BAU . In the season eight premiere, Morgan and Garcia mention seeing her while they were in London and that Emily is doing fine . </P>

When does prentiss come back in season 7