The Best Episodes Written By Moira Kirland

The team has mixed feelings when a familiar face returns hoping to prove himself. Meanwhile, an influencer gets his fans to come after Wesley, and Tim supports Lucy as she prepares for the sergeant's exam.

It’s Valentine’s Day, and Lieutenant Grey gives Tim and Lucy an unromantic assignment, while John and Celina track down a missing girl. Later, the team sharpens up for a charity gala where multiple relationships come to a head.

Allison has recurring dreams of her past, causing strange and shocking changes to her current life. Her dreams of the past threaten her life in the present as she tries to stop a predator before he strikes.

Federal Agent Jordan Shaw, an insightful and accomplished Federal investigator teams up with Castle & Beckett to hunt down a cunning and elusive serial killer.

Allison is having dreams about an old high school friend and decides to find her. Meanwhile a man seeks the district attorney's help in finding his daughter who has been missing for a week.

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.

While the team investigates a couple's murder in which their sons are the prime suspects, McGarrett is shocked when Aunt Deb returns to the island with her new fiancé.

Allison dreams about hitting a girl with her car and a woman who's house is haunted. She finds out that the woman killed herself. Now Allison is trying to put all the pieces together.

Allison gets Joe a camcorder for his birthday. But soon she starts seeing disturbing images through it that may or may not be connected to a murder.

Allison and Ariel are starting to have dreams about a crime. They are dreaming about it from different perspectives, which reveals two suspects.

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.

Allison is asked to help find a missing daughter and her visions seem to incriminate her father, but Allison believes this is wrong after a chat with the woman's mother. Meanwhile, Joe is suffering from sleep deprivation, while Scanlon and Lynn's relationship is severely tested.

An escape plan goes haywire and old foes face off. Val learns a secret about Owen.

Allison encounters a psychopathic doctor who raped and murdered numerous teenage girls years ago. After learning that an evil soul has been possessing people, she sets forth to stop it before a new victim is found. Meanwhile, Ariel's math teacher accuses her of cheating and Joe steps up to her defense.

Allison has problems with staying impartial about a case when she develops maternal feelings for a teenage boy who is accused of killing his former boss. Bridget finds a stray dog and want's to keep it.

Castle and Beckett investigate the murder of a woman found drowned in motor oil in a motel bathtub. They seek the help of a true crime journalist who might have a connection to the victim.

Oliver still hasn't figured out how to get back in Laurel's good graces, but a late night bonding session with Thea gives him the inspiration he needs. Looking into a suspicious murder case, Oliver realizes an innocent man, Peter Declan, was framed by one of the targets on his list. As Arrow, he asks Laurel to help prove Declan's innocence. Meanwhile, Walter asks one of his employees, Felicity Smoak, to look into a $2.6 million withdrawal that Moira made without his knowledge.

When Snow White operatives attempt to get into the Federal Reserve’s vault, Val races against time to prevent an economic collapse.

Beckett and Castle search for a psychic's killer while debating the existence of extrasensory abilities.

While investigating the mysterious shooting death of a young woman, Castle and Beckett face a cop's worst nightmare when they discover that the gun used in the killing is Det. Ryan's old service weapon - the one that was stolen by the serial killer, 3XK. Now with the clock ticking, the team must work to solve the murder, track down 3XK and retrieve Ryan's gun before the killer strikes again.

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.

Walt reluctantly accepts Johnny's help when a crime from the past comes back to haunt him.

Tinga, who escaped to Canada in #1.12 with other X5's, when Eyes Only warned them their locations were compromised, comes back in town to save her husband and son. With Max and Zack's help, the family is reunited, but not before the son is given a deadly pathogen. Lydecker agrees to cure the boy in exchange for Tinga. Unbeknownst to him, Madame X has already arranged for Brin to double cross Lydecker. She captures Tinga, who is able to pass her special traits to her children, to study her.

After months of being imprisoned at Manticore, Max has resisted powerful attempts at re-programming and breeding and plans her escape from the genetics lab. She is aided in her breakout by the gentle but beast-like Joshua, an early Manticore creation, and together they release all the other Manticore creatures. Max attempts to reunite with Logan, only to discover that he is now number one on Manticore's most wanted list.

Max begins to develop strange markings on her body while leading a transgenic resistance against White, when he attempts to capture one of her "brothers". However, the transgenics are stunned by revealed secrets about their "father" that threaten all that they believe and stir up many more questions. Meanwhile, the Terminal City dwellers mount a campaign to battle the humans hunting them down, and Alec learns why Logan has been keeping his distance from his former friends.