The Stitchers team is on the defense when Cameron and Detective Fisher are targeted in a shooting. Kirsten's stitch leads them to Robert Barbiero, a security expert who has worked with Maggie in the past and was close to Kirsten's mom. As Kirsten follows the clues that Ed Clark left her, she finds unexpected answers to long-held questions.

Now closer than ever to uncovering the mysteries surrounding her parents, Kirsten’s mind is threatened when her stitch leads her deep into the recesses of her own memories.

When a plane lands in Los Angeles with multiple dead passengers and no apparent cause, the Stitchers team sweeps into action. Now racing against the clock to determine if this is a terrorist attack or the work of a fellow passenger, Kirsten is tasked with stitching into one victim after another to learn exactly what happened. Cameron worries about Kirsten’s well-being and their new dynamic in light of his relationship with Nina. Meanwhile, Camille tries to help Linus through a personal issue, and Liam continues to cause problems.

Kirsten’s father Daniel Stinger shows up and Kirsten must perform the most important stitch of her life.

Kirsten successfully revives Cameron, but finds that stitching into a live consciousness is now causing her to experience real emotions for the first time.

When a black hat hacker dies after an extortion scheme gone wrong, the team learns he was involved with a website dedicated to infidelity. As the case develops, Kirsten discovers that the hacker was actually set up by someone with an extreme thirst for revenge. But when the killer turns their attention to the team's personal lives, the Stitchers find themselves in grave danger at every turn. Meanwhile, Cameron's recent brush with death gives him a new perspective on life, and Linus finally moves out of his parents' house and into a fully equipped smart house

When Kirsten wakes up to find that everyone in the stitch lab, except Cameron, is missing, the two search everywhere but only find a series of mysterious clues. Kirsten is forced to confront her own emotions about her relationship with Cameron.

When a bright, young lawyer is found dead, the team suspects she was murdered because of a case she was working on. After theorizing the lawyer was killed because she discovered something criminal about her firm’s high profile client, the team heads to the firm to interview her four ambitious coworkers, each of whom seems more suspicious than the last. While at the firm, Maggie crosses paths with a former college boyfriend who may be closer to the murder than she’d like to admit. Meanwhile, Camille’s interactions with Liam take a surprising turn, and Kirsten learns something shocking during the stitch.

Fueled by his love for Kirsten, Cameron finds a way to bring her back to reality, but it could cost them their relationship. Meanwhile, the Stitchers lab is on lockdown, leaving an anxious Linus unable to check on his father’s condition after surgery. But, as the team prepares to be reassigned for breaking protocol, NSA Director Mitchell Blair surprises everyone by demanding an emergency stitch that yields shocking new information.

When an unidentified, severely damaged body is recovered in a dumpster, Kirsten’s stitch divulges that the victim has two death scenes from two very different times in his life. Camille tires of her brother Theo’s irresponsible ways and finally puts her foot down. Linus turns to Cameron for help with a sticky situation. Detective Fisher and Kirsten uncover a clue about her father.

When a young woman falls to her death with a cryptic note attached to her body, Kirsten is convinced the message is somehow tied to her own past.

When Cameron’s neighbor is killed, the Stitchers group works to determine if the bullet was really meant for Cameron. As they stakeout the location Kirsten finds that she enjoys the reconnaissance, maybe a little too much. Meanwhile, Cameron shares more details with Kirsten about Marta’s disastrous stitch.

Kirsten surprises the Stitchers team when they discover that she has a boyfriend, Liam, who shows up suddenly, prompting Maggie to covertly gather information on him. Meanwhile, a young woman’s extravagant social life may be the clue to her death.

The Stitchers team investigates the murder of an online psychic whose symbolic, layered memories are further complicated when Kristen sees the murder of another person in the stitch. Maggie expresses her reservations about Kirsten’s relationship with Liam. Meanwhile, Camille hesitantly agrees to meet Linus’s parents.

Mitchell Blair directs Kirsten to shut down all investigation into finding her father. But Kirsten has finally made contact with someone she thinks can lead her to him. To gain her source’s trust, she tries to explain her role in the Stitchers program, without actually revealing the program’s nature. Treading carefully, Kirsten recounts the team’s current case, in which a series of murders is tied to a wildly popular new app.

A high-profile divorce attorney is murdered and the Stitchers team must sort through a plethora of suspects. Meanwhile, Linus discovers the cause of the neurosync issues in the stitches, which directly affects Kirsten and Cameron.

A series of murders, including a professional volleyball player, lead the Stitchers team searching the darkest corners of the Internet. Meanwhile, Kirsten gives Maggie an ultimatum.

When a murky stitch doesn’t give enough evidence against a newlywed husband accused of killing his wife, Kirsten attempts to prove her strong feelings about his guilt. This effect on Kirsten makes Cameron worry that she will end up like Marta. Meanwhile, Linus and Camille get to know each other better.

The Stitchers team investigates a mysterious car accident that resulted in the death of a traumatic brain injury researcher. Meanwhile, Kirsten asks Linus for help deciphering a clue left by Ed Clark as she continues to question Maggie for more information on the origin of the Stitchers program.

It’s Kirsten’s birthday and the Stitchers team is assigned to look into a disease researcher’s suicide. When the body begins showing signs that it is carrying a deadly virus, the whole lab is placed under quarantine. The team jumps to action as they search for a way out, racing against the clock as, one-by-one, they come down with symptoms of exposure.

While Camille preps for her annual Halloween bash, the Stitchers team investigates the suicide of a young man, who may have abducted a missing college student. The stitch leaves Kirsten spooked, and she begins to worry she’s being haunted by him as they race to find the missing girl.

When Fisher's mentor turns up dead, Kirsten's stitch reveals the officer was murdered by a serial killer she's been chasing for years. Camille's rebellious older brother Theo arrives in town with a whole lot of trouble. Meanwhile, Cameron is finally honest with Kirsten about his feelings for her.

When a Chinese pop diva is killed, her female bodyguard is blamed for the murder, who appears to have been passed out at the time of the homicide.

When an MI6 agent is found dead, Kirsten struggles to sort through his memories due to the visual codes that the spy used to keep secrets. Meanwhile, Linus and Camille go on a double date, but not with each other.

When the algorithm for the Stitchers program turns up among thousands of classified documents hidden by a conspiracy theorist, Kirsten starts to suspect her colleagues. Meanwhile, Kirsten starts getting cryptic messages from an unexpected source.