Liz has finally told someone about her “husband,” specifically her partner Ressler. She takes him to her house and he advises her to bring in the FBI to help her. Keeping it secret even longer will only serve to her detriment. So, in comes the FBI, searching and scavenging her home for evidence and clues and questioning her ad nauseam. They continuously refer to Tom as her husband, which Lizzie requests that they refrain from doing. The FBI is certainly suspicious of Lizzie and her involvement with Tom, but she is allowed to go free and continue her work.
Meanwhile, an armored car driver named Paul Blankenship walks into a bank and collapses dead. Prior to this he looked in a box he had on him, in it was a syringe with an unknown substance. He does not use the substance, he goes to the bank, calls 9-1-1 in the bathroom to deliver a goodbye message to his wife.
And then there’s Tom. He discovers who is tailing him, and attacks the man. He forces him to call Red and tell him that he lost his mark, and then proceeds to question and kill the operative. He talks about the man he works for, who he calls “Berlin” and tells the man he is about to kill “You don’t choose Berlin, he chooses you.”
Red brings the dead armored car driver case to the FBI and is there when Liz walks in and attempts to tender her resignation but Red refuses to divulge any information about the case without consulting with Liz and claims that it is directly related to Tom Keen. She begrudgingly agrees although her attitude towards Red is clearly unchanged.
It is found that Blankenship was infected with the Cullen Virus, supposedly the most lethal virus on the planet that was considered to be so lethal and dangerous that all research on the virus was suspended by the CDC. The virus was synthesized however, to not be communicable but to stay within the host and the host alone. The syringe was found to contain an antidote (even though the virus has no known cure).
The FBI and Reddington determine that the virus is being used as a weapon to force those infected to do the bidding of the mysterious Berlin. Blankenship refused and therefore died. Another man is subsequently infected and is delivered a video message explaining what he has been infected with and that he will receive a second treatment to keep him alive the next day and instructions on what he has to do in order to stay alive.
As this happens Red and Liz travel to meet with Dr. Sanders who is a brilliant virologist, but also happens to be a patient in a mental hospital. Through much work, they determine that a doctor at the CDC, Dr. Vogel, has been in contact with the patient to use his research to synthesize a cure. The FBI apprehends the CDC doctor and Liz questions him. He reveals that Berlin is coming and that the victims that he has infected with the disease are just random people from different walks of life, but refuses to give names explaining that they will do his bidding or die trying because “that’s how blackmail works.”
Liz has a few tricks up her sleeve too though, and had laced his glass of water with the virus. And tells him she will give him the antidote if/when he gives her the names of the five people, because that’s how blackmail works.
Lizzie begins to research all of the cases that the Task Force has been working on with Reddington and has an epiphany. All of the cases are connected. Red is using the task force as a means to ally himself with the FBI for protection against Berlin (who Liz finally figures out is a person, not a place). The puzzle pieces are all fitting together.
Dr. Vogel revealed the identities of the victims and they all have connections to airports. What this reveals is not that Berlin is coming but that he is breaking out (a jail break). The target is Langston Municipal Airport. The five players are all connected to this airport, a cleaning lady with access to circuits, an electrician, an armored car driver, a pilot, a former air traffic controller. The FBI head in just as the plan is underway and the mission is aborted, the armed men kill the pawns and the plane does not make its landing.
Lizzie resigned the task force and when she attempts to reverse this, her boss tells her that it is too late. She rushes to find Red in order to protect him and help him get away because part of her resignation was the loss of immunity for Red and his being taken into custody. She arrives and tries to warn him, but it is too late, the FBI has them surrounded. And Red is unfazed by this. He sits nonchalantly and talks to Lizzie about how he assumes she realized she made a mistake in trying to capture him and he wants to hear more about it.
The plane has yet to land and the air force has put out a shoot-to-kill order. The man in the back of the plane (Berlin, presumably) demands the pilot land the plane immediately. In the meantime Lizzie attempts to convince Red to run. He doesn’t care. He says that “this is about Sam.” She refuses to forgive him for killing her father. Red says that nothing, not solitary confinement or death would be worse than losing her. He pulls a gun on her to make it look like they aren’t in cahoots. In true Reddington fashion, he launches into a story about diving and being stung by a lionfish, hallucinating and dying. He was nursed back to health by a “sea gypsy” as he called her. Liz and Red are stuck with each other. Berlin’s plane is hit and goes down just as Red succumbs to arrest.
Tune in next week to learn who Berlin truly is. Will we learn the real connection between Red and Liz? Will the task force survive? Tune in Monday, May 12th, 2014 on NBC for the season finale to find out!