A mysterious caller threatens to reveal a leaked list of undercover FBI agents if a prisoner is not released; Simone enlists John Nolan to help her remodel Cutty’s garage into a living space.

The crossover starts on The Rookie S05E10 The List (I).

As the unit investigates a murder victim whose body has been drained of blood, the gruesome case catches the attention of a true crime show, and Brendon shares his “Vampire Cop” expertise to help solve the case.

When a billionaire’s daughter goes missing, he publicly announces a hefty reward for her safe return, sparking concern for the FBI. Meanwhile, Garza’s ex-wife makes a surprise appearance and shakes things up with the team.

It’s Valentine’s Day, and love is in the air. The FBI teams up with LAPD to take down a shady Casanova linked to a notorious drug lord. While the rest of the team celebrates with their new loves, Simone connects with someone new.

After a group of robbers steal a diplomatic pouch, Naomi and the Feds work to prevent an international counterfeit scandal. While Garza reconnects with an old friend, Brendon’s sponsor relapses, and he rethinks his relationship with Antoinette.

It’s a race against time as the Feds band together to stop death row inmate Foster and his cult following’s killing spree ahead of his execution. Meanwhile, as Cutty and Ruth’s relationship gets serious, Simone and Dina are forced to reconnect.

After an internal investigation unit agent is drugged and buried alive in a desert outside of Vegas, the Feds director enlists Garza's unit to discreetly investigate. Meanwhile, Simone's plans for her 49th birthday bash are sidelined.