When the teenage perpetrator of a high school hostage crisis disappears, the agents solicit some unusual help from their suspended boss, Pollock, to investigate the school psychiatrist's records. Then, when another student goes missing, suspicion falls on the mysterious Patient X.

Antonio, Jess and Colin give up their vacation time to help Nicole investigate the disappearance of her nephew.

Nichole Scott may not survive her latest case because of a severe concussion. Now Jess takes the lead on the case.

The case concerns a man named Tom that has gone missing. As the team begins to investigate They soon learn that the dad isn't surprised when Nicole and Jess arrive at Dan's house to inform him that his son is missing.

The team also finds out that the father has hired someone who turns out to be a terrorist.

The agents learn that Tom has been missing in South America but their investigation takes quite a surprise when they go back to interview his father again only to find Tom has returned home.

Nicole tries to hide her concussion from her boss John Pollack. When they are trying to arrest Tom for shooting his father.

Nicole and Jess are on the search for a woman named Caroline Dunn who went missing during spring break. The team believes she went missing with her boyfriend Luke. meanwhile Nicole is still ready to go back into the field while dealing with a concussion.

As the search for Carolyn continues the team discovers a surprising result that they didn't expect.

Nicole and Jess travel to Budapest Hungry to track down a missing bridegroom.

This case may be the toughest one the team has had yet. When the inventor of Easy Abs is nowhere to be found the team finds a ransom note and then another ransom note. What has the team confused is the two different amounts on both ran some notes.

The team searches for his serial killer named Carol Eisenberg who along with her husband killed five girls. Now she has escaped from prison.

Also Jess warns Antonio that someone may harm him. Her vision turns out to be correct when Antonio realizes he's being stalked by a dead man.