Allison investigates when a brother and sister report the disappearance of their mother. Meanwhile, Joe's sister moves in with Joe and Allison after walking out on her husband Ryan, but Joe's father has advice from beyond the grave about her relationship.

Allison's old flame, Clay Bicks, appears at her doorstep moments after dying, unaware that he is dead. When he accepts the fact that he's dead and will never get to be with the woman he loved, he decides he's going to stay in Allison's house so he can at least be close to her. This upsets Joe, and Allison decides that something must be done to get rid of Clay. Meanwhile, Allison shares a bunch of odd dreams with Bridgette, except Bridgette's dreams keep coming to her in the form of cartoons for some reason.

Allison and Devalos are shot and Allison awakens in 2004, five years earlier and now nine months pregnant with her third child, Marie. Allison's dreams informs her about an innocent man who will be convicted of murder, and she works to clear his name.

Allison turns to Cynthia Keener (who is now in jail) when she starts dreaming of a former kidnap victim who Cynthia had once rescued.

On the 100th episode of Medium, an infant is kidnapped and Allison investigates the disappearance. But when she becomes too obsessed with the infant, Joe starts to get worried about her. Meanwhile, Bridgette and Joe are surprised after Marie manages to play the clarinet without any issues even though she hasn't attended any classes, while Bridgette is struggling to play.

Joe brings a reluctant Allison with him to a party at a prospective employer's house. Later on, the employer's daughter disappears, leading Allison to connect her recent dreams about Paris to the disappearance. Now it's up to Allison to save the daughter, which coincidentally will also secure Joe a job.

Allison meets Meghan Doyle, Joe's new business partner. Meanwhile, her old car stops working and Joe surprises her with a nice looking used car. The car ends up being the center of a horrible unsolved crime though.

Allison has dreams that help Scanlon in his search to find out who killed a wealthy local drug dealer. Allison and Scanlon are dumbfounded when Allison's dreams lead them to a severely impaired man with a bullet stuck in his brain. Meanwhile, Joe's partnership with Meghan Doyle is put in jeopardy.

While working on a 17 year-old-crime, Allison exhibits unusual behavior that may be pivotal in solving the case, but at the same time puts her family at risk. Meanwhile, Joe's dinner invitation to a colleague yields surprising results.

Allison finds out she has a brain tumor and must get surgery to get rid of it, but then has a dream that the surgery will take away her dreams after dreaming that Castillo is going to kill Joe and the girls.

Samples of a lethal viral disease vanish, a dire development that pushes Allison to tap into her extrasensory ability to foil a possible large-scale bioterrorism attack. Meanwhile, Scanlon prepares to pop the big question to Lynn (Tina DiJoseph), but Bridgette's visions indicate that their relationship could meet an ill-destined end

After Allison is mugged, she decides to take charge by enrolling in self-defense classes. Also, Devalos investigates a teenager's rape and an undercover cop's possible murder, and the suspect may have very close ties to Scanlon.

Allison runs into the man who kidnapped her daughter in one of her dreams at the District Attorney's office. She learns that he is a "Good Samaritan" who witnessed a robbery and is fully cooperating. After learning that he has kidnapped multiple young women, Allison reaches a roadblock in her investigation that leads her to yet another unbelievable breakthrough in the case. Meanwhile, Joe tutors Ariel in math, which in turn brings Allison to another shocking discovery.

Allison has visions of a friend of Scanlon and Lynn DiNovi dying in a home mishap. This causes her to struggle with connecting some recent "accidental" deaths, consequently putting her own health in jeopardy.

When Allison's friend with cancer suddenly dies she suspects a hospital employee may be at fault. Meanwhile, Bridgette writes a story that closely follows what later happens at Joe's job interview.

Allison fears the worst about Ariel's new boyfriend when she suspects him of murdering a man. Also, Bridgette posts embarrassing videos of a man on the Internet and gets into trouble.

Odd things occur for Allison, starting with her new sensitivity to light and the fact that the sunglasses she wears shows mysterious numbers that can tie into people's life expectancies. Like that wasn't enough, Allison has a dream about Joe's dad, causing Joe to begin taking better care of his health.

Allison questions her powers when her old boss asks for her help in selecting a jury that will reinstate the death penalty for a murderer/rapist. This causes Allison to suspect that she has helped put the wrong man on death row.

Allison's recurring dream about two young boys racing a train is analyzed by Dr. Leonard Cardwell, but Allison soon learns that he's involved. Devalos investigates the case of a 14-year-old who confessed to murder.

Evidence shows that a pilot is indeed guilty of his wife's murder. However, in Allison’s dream, when the pilot is put in jail, there is a plane crash where hundreds of people are killed. Should Allison put forth the evidence to land this guilty man in jail, or let him go free in order to save hundreds of innocent lives?

While Capt. Push lingers between life and death, Allison struggles to decipher confusing messages from the other side in an attempt to stop a serial killer before he claims his next victim.

Allison is called to help Devalos investigate the shocking death of a well-respected assemblyman, but for some reason she has visions of a young boy trapped in a well mixed in with her visions of the assemblyman. She must figure out what the dreams of the young boy mean because the dreams of the assemblyman alone aren't enough for her to solve the assemblyman's death.

Allison dreams about a strange friendship between two recently murdered ghosts. When she tries to help one of the ghosts solve his murder, she is surprised when he declines her help.

Larry Watt, a defense attorney who has caused trouble in Allison's past, asks Allison to be a consultant for him. Low on money, Allison accepts his offer. She later has a dream that his client murdered his wife.

Joe's mother pays a surprise visit, which worries Allison because she hasn't seen her since her psychic abilities became public knowledge. Meanwhile, Cynthia Keener tries to push Allison's dreams towards outstanding cases and Devalos and Scanlon are reunited with Allison in an unexpected way after an arson-related murder.