It’s Alex and the team’s last stand against the Collaborators at the Constitutional Convention, where a new amendment to the Constitution threatens every American’s freedom.

It’s graduation day for the NATS of Quantico, while, in the future, Alex and her team find themselves head-to-head with the terrorist.

The NATS are excited that graduation is near as they prepare to leave Quantico and head out into the real world for their new assignments. In the future, Alex learns someone she cared about at Quantico is not who they seemed to be, as she finds herself at the heart of another possible attack.

At Quantico, the NATS’ current assignment is to learn about human trafficking when Liam and Miranda challenge them to cross the U.S. / Canadian border without passports. Meanwhile, in the future, Simon continues to help Alex try to find the terrorist, but doing so puts his own life in great risk.

The terrorists responsible for the bombing of Grand Central Station finally reveal themselves, but instead of answers, more questions remain. While back at Quantico, the recruits receive a well-deserved few days off for the holidays, but not everyone is oh so merry when secrets are revealed and lines and blurred.

Conor Devlin continues to seek revenge as someone from Alex’s past comes back into her life.

A despondent Clay meets with the President to discuss the future of the task force, but he’s interrupted by the arrival of his brother. Meanwhile, Alex leads an operation to expose the collaborators’ plans to sink the President’s reputation, and she teaches Owen to trust his instincts.

At Quantico, the NATS attend a class with guest speaker Dr. Susan Langdon. Dr. Langdon is a former agent and profiler who tasks the trainees with looking at serial killer cases to find the one victim that doesn’t fit the case, but when Simon becomes too good at finding things that don’t belong, it’s his life that becomes endangered. In the future, Alex is interrogated by a highly sophisticated FBI team while Ryan’s life hangs in the balance

At the Farm, Lydia and Owen teach the group about the necessity of lying and cutting off relationships. Perfect timing for Alex, since she is feeling disconnected from Ryan personally and professionally. In the future, Alex and company attempt to destroy the biological weapon.

At the Farm, Owen teaches the trainees about enhanced interrogation techniques, and turns the tables on his students by putting himself in the hot seat. Meanwhile, Shelby goes undercover. In the future, a new president is sworn in, and Miranda makes a tough choice.

New CIA recruits run counter-surveillance exercises at The Farm. In the future, Ryan and Raina try to thwart the terrorists' plan to blend in with hostages

It’s midterm exam time at Quantico where the NATS are given an explosive assignment which results in some people going home for good. In the future, Alex continues to try and clear her name, finding Nimah and Raina who provide more questions than answers leaving Alex and the world to wonder, “who can you really trust?”

The trainees are put through a training drill that tests their stress levels while Alex tries to gather information and get close to Owen. Meanwhile, in the future, the terrorist organization demands a trade, a move that could possibly end the stand-off.

While investigating the dark world of espionage at a mysterious CIA training facility, Alex becomes caught at the center of a conspiracy that threatens lives across the globe.

When Owen and McQuigg learn heartbreaking news about family members, the team goes on high alert as they quickly learn nowhere is safe.

With only a few weeks until graduation, the NATS are dispatched to various field offices where Alex and Ryan find themselves working a case together. Meanwhile, in the future, Shelby and Caleb’s relationship takes a turn, and Alex doesn’t know who to trust when she discovers new information about the man she loves.

After an impossible choice is made, a flood of new proposals shine a light on the final stages of the Collaborators’ plan. Fractured but not defeated, the task force, with the help of some old friends, work to put the pieces together before the Collaborators can enact an unthinkable terrorist attack.

Alex and McQuigg are assigned to protect a prince following the assassination of an emir, but the team soon realizes the killer is closer than they think.

Ryan and Alex recruit Owen and Harry to help rescue their friend and defeat The Widow. To help the cause, Owen brings in former agent Jocelyn Turner, who has her own dark past with The Widow.

When a physics professor at a major U.S. university steals weaponized uranium, the team scrambles to find the professor and the missing uranium before it can be used against an important international summit meeting in New York City.

At Quantico, the NATS team up for defensive driving lessons while tensions between Liam and Drew explode, resulting in shocking admissions and consequences. In the future, Simon grapples with his new reality in the aftermath of what’s transpired. Even though his friends try and help him, it’s uncertain he will ever be the same again.

Alex tries to convince Owen of the traitor amongst them. The recruits are tasked with getting an asset out of Germany – but their target has a death wish. In the future, the terrorists resort to new means to gain information from the hostages.

The recruits learn how to burn everything down if they are ever exposed. Meanwhile, a mysterious death leads to an FBI investigation at the Farm. In the future, Alex heads back into the crisis zone and exposes the true traitor within the CIA.

The team is tasked with protecting a scientist who has developed a deadly technology that, in the wrong hands, could have devastating consequences to mankind. Meanwhile, Ryan and Shelby stumble on something personal of Alex’s that signals a possible change in her personal life.

At the Farm, the recruits break into the NSA on a mission to delete all their personal information, but the rogue group within the CIA has other plans. In the future, the hostages strategize an escape via underground tunnels as a set-up to get the terrorists to reveal themselves.

Lives are in danger as the team protects Shelby when she reunites with someone from her past, resulting in deadly consequences.

At Quantico, the NATs look into each other’s background to determine who gets high-level security clearance, and in the process Alex, Shelby and Iris learn some surprising truths about Drew, Will and Caleb. Meanwhile, in the future, Alex contacts Claire Haas (guest star Marcia Cross) in order to find her missing friends and is shocked when she discovers what happened to Cale.

The team is in Ireland, and when they finally come face-to-face with Conor Devlin, not everyone comes out alive. And Alex makes a life-changing decision about her future.

At the Farm, Owen teaches the recruits a lesson on the necessity of betrayal, with a mission of getting the Venezuelan Consul Gabriel Carrera to turn on his country. In the future, Alex is forced to team up with Miranda in order to save the hostages, while President Claire Haas has a plan to end the crisis once and for all.

The team must protect an ex-CIA Agent to take down a cartel kingpin, an assignment that puts all of their lives in danger.

In the wake of the G20 hostage crisis, President Claire Haas assembles an illegal and clandestine joint task force, bringing together Alex and her friends from both the FBI and CIA to unmask a global conspiracy.

At Quantico, the recruits are tasked with performing a hostage rescue training exercise that shakes Alex, making her question her ability and whether she should quit Quantico. While in the future, Alex continues to search for clues, finding one that questions the innocence of one of her closest classmates. But is her clue really what she thinks? No one is who they seem.

The recruits are schooled in the art of seduction, which Alex sees as a perfect opportunity to get closer to Owen, but will it threatens her relationship with Ryan? And in the future, Alex finally gets the answers she’s been looking for about who and what the terrorists are on.

The NATs learn surveillance by putting it into practice with Miranda and her troubled son, Charlie. Shelby tries to keep Caleb at a distance, but Raina opens the door to a closer relationship with Simon. In the future, Alex is helped when she tries to hack into an FBI computer.