On Criminal Minds Season 13 Episode 10, the BAU team searches for an UnSub with a puzzling past, when a series of backyard pool homicides are reported.
On NCIS: New Orleans Season 4 Episode 11, Percy reconnects with her former ATF partner, after a deadly armed robbery is connected to an undercover operation.
On The Librarians Season 4 Episode 5, a Librarian from the past teams up with the present Librarians. On The Librarians Season 4 Episode 6, Baird teams up with Nicole.
On The Librarians Season 4 Episode 3, Ezekiel's thief mother causes holiday chaos. On The Librarians Season 4 Episode 4, Flynn and Eve get sucked into her favorite movie.
On NCIS: Los Angeles Season 9 Episode 11, the team investigates a ransomware attack that takes out the entire power grid for west L.A. and paralyzes the city.
On Hawaii Five-0 Season 8 Episode 10, Danny imagines Five-0's future after being shot. On Hawaii Five-0 Season 8 Episode 11, Danny tells Charlie about a recent case.
On The Librarians Season 4 Episode 1, the Librarians battle a sect out to destroy the Library. Then they must stop a spate of bad luck on The Librarians Season 4 Episode 2.
On NCIS: Los Angeles Season 9 Episode 10, when a skilled assailant is determined to avenge her father's death by killing a Brazilian diplomat, NCIS investigates.
On Hawaii Five-0 Season 8 Episode 9, McGarrett, Danny, Tani, and Junior are all exposed to a deadly bioweapon while checking on a deserted yacht adrift at sea.
On Criminal Minds Season 13 Episode 9, the BAU is called to investigate when two members of a conspiracy group in Roswell, New Mexico die one after the other.
On Criminal Minds Season 13 Episode 8, the BAU is called in when an UnSub sensationalizes his crimes by giving the local media in Miami exclusive footage.
On NCIS: New Orleans Season 4 Episode 9, when homeless kids are the suspects in the murder of a petty officer, Pride and the team second guess the evidence.
On NCIS: Los Angeles Season 9 Episode 8, the team must locate a group of unknown assailants who illegally crossed the border and attacked CHiP officers.
On Hawaii Five-0 Season 8 Episode 7, Adam and Junior back up McGarrett during a bank heist in which forces Steve to make a potentially heartbreaking mistake.
On NCIS: Los Angeles Season 9 Episode 7, Kensi is called in to help after an Air Force captain she dated a decade ago breaches a missile launch facility.
On Hawaii Five-0 Season 8 Episode 6, the Five-0 investigations into the murder of two tourists leads to a man suffering from multiple personality disorder.
On NCIS: New Orleans Season 4 Episode 7, when a clinical trial using brain implants in Veterans is hacked the team works with Patton's ex who heads the project.