Allison dreams that she's a woman who's been committed to a mental institution in 1959. After viewing taped sessions from the clinic, Allison discovers that the woman from her dream had made claims of being Allison DuBois, living in 2005.

The episode was rated 7.73 from 115 votes.

In the fourth season finale, Allison tries to help a young couple who thinks their house is haunted, but her efforts result in murder. Meanwhile, Meghan Doyle tries to sell her controlling interest in Joe's invention and Joe tries to save his own stake in it. Also, the election between Devalos and Tom Van Dyke takes place.

The episode was rated 7.74 from 68 votes.

After somehow seeing Capt. Kenneth Push in a vision at a murder scene, Allison calls upon his assistance to find a serial killer. However, the only way Capt. Push can help is by literally putting his life on the line.

The episode was rated 7.74 from 116 votes.

Devalos tries to reclaim the D.A.'s office. Allison's support of Devalos is tested when she has visions of Senator Jed Garrity, Devalos' strongest political supporter, involved in a horrible conspiracy.

The episode was rated 7.75 from 67 votes.

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.

The episode was rated 7.75 from 71 votes.

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.

The episode was rated 7.75 from 65 votes.

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.

The episode was rated 7.76 from 127 votes.

Allison has a dream of a husband and wife committing a murder/suicide. D.A. Devalos introduces her to a friend of his, Detective Lee Scanlon, who's sister and brother in-law's deaths were also ruled a murder/suicide, and sees a connection. After learning about Allison's methods of investigation, Scanlon decides he doesn't want her help.

The episode was rated 7.79 from 180 votes.

Allison's daughter Ariel dreams that she is a young girl named Sarah being held captive by an ogre in a castle. While Joe agonizes over the possibility that both of his daughters have inherited their mother's psychic abilities, Allison tries to help Ariel and interpret the dream. However, Allison's advice provokes Ariel to run away from a field trip in order to follow up a clue.

The episode was rated 7.80 from 130 votes.

Allison investigates the supposed suicide of a girl who was dating D.A. Larry Watt's son Greg. When the girl's body is found in a ravine, new evidence is presented that implicates the defense attorney. Meanwhile, Joe is concerned about one of his colleagues after Allison has a premonition of the colleague having a heart attack.

The episode was rated 7.81 from 139 votes.

Joe tries to prove that Allison's dreams are stress related by sending descriptions of them to law enforcement agencies. However, when one of her dreams matches a homicide in Texas, his attempt is thwarted.

The episode was rated 7.82 from 212 votes.

Allison seeks Catherine's (the psychic she talked to in "Pilot") help after learning that Joe has scheduled a biopsy exam. The psychic gives her a strange message that later comes back to haunt Allison. A case about the homicide of a police officer takes a shocking turn when Allison dreams where the murder weapon is located and is then called to the stand to testify how she obtained the information. Meanwhile, Allison fears that Joe is having an affair when he repeatedly comes home late from work.

The episode was rated 7.83 from 162 votes.

A shocking and brutal conclusion awaits Allison and Cynthia as they delve into the decade-old case of the kidnapping and murder of Cynthia's daughter. Meanwhile, Joe tries to get funding for a new invention and Bridgette predicts good fortunes for her dad.

The episode was rated 7.89 from 72 votes.

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.

The episode was rated 7.92 from 60 votes.

When Allison becomes a lawyer and Joe starts a new job, the Dubois family is forever changed on the series finale of Medium.

The episode was rated 7.97 from 77 votes.