A severed hand washes up on a Shetland beach, with further body parts discovered in a holdall that has been dumped at sea. Perez and the team begin a complex murder investigation.
Appa and Jung try out the old family ping pong table Umma's feelings get hurt when Janet refuses to hang out with her a gift basket causes problems.
Mrs. Adler joins a children's music group and is too ashamed to tell the other teachers. Ms. Watson and Ms. Bennigan find their classes passing notes, which causes a rift in their friendship.
Moira and the Jazzagals take Jocelyn out for a night at the casino, while Johnny tries to navigate an awkward conversation with Stevie about intimacy in the workplace.
A stunning structure uncovered in Smith's Cove perplexes the brotherhood like never before and at the Money Pit, the team finds evidence they may have discovered the legendary box believed to contain the Oak Island treasure -- the elusive Chapple vault.
Max and Michael begin to worry about Isobel after a series of mysterious blackouts cause her to spiral. Liz turns to Grant Green for help when she learns that he may have witnessed something strange on the night Rosa died. Meanwhile, Kyle and Alex uncover a secret that Kyles father had been keeping from everyone.
Katie plans a “friend date” in hopes of reconnecting with Taylor and encourages Greg to attend self-help guru Johnny Diamond’s seminar with Oliver. Meanwhile, Anna-Kat takes extreme measures to secure her place as Katie’s favorite child.
Dre and Bow struggle with the changing times of identity politics and gender neutrality. Diane auditions for the school play and scores the male lead part, but her crush starts spending time with another girl. Meanwhile, Junior’s Valentine’s Day date goes awry after Dre and Pops have a talk with him about chivalry.
When one of the Inner Circle goes missing, Reeva intensifies security in their compound, but realizes that her plans may have already been exposed. Furious and paranoid, Reeva resorts to violence. Caitlin and Reed consider using the serum to restrict Lauren's use of her powers, hoping it will help her as she wrestles with nightmares about the Inner Circle and her ancestors. And it's the battle of two extreme ideologies when the Morlocks and the Purifiers come face-to-face in battle.
After Iris lands in serious danger, Nora races to save her mother. Barry puts the finishing touches on the metahuman cure, leaving Cisco with a rare night off so he decides to take Kamilla on a date.
Kevin attempts to help Nicky. Randall and Kate reflect on differing memories of their childhood.
Mysterious green fireballs nearly cause a nuclear disaster during a weapons test, and Hynek and Quinn must investigate how it could have occurred.
After a malnourished and confused 9-year-old is found hiding in a storage unit, the team reopens an old missing persons case that Special Agent Ziva David had a personal interest in.
Callie plans to disclose her connection to Malika to Judge Wilson before Ben has the opportunity to undermine her and, in the process, learns she might not be the only one with a conflict of interest on her team. Meanwhile, Gael consults Callie for legal help for his sister Jazmin.
When Cole and Murtaugh investigate a case involving a father and daughter crossing the Mexican border, they end up uncovering a major issue with California Boarder Patrol. Meanwhile, Trish prepares her campaign for D.A. and must face parts of her past, before they find their way into the media spotlight. Cole also confronts his past when he experiences flashbacks as a result of an injury.
NCIS investigates the disappearance of a Navy entomologist after a deadly shooting at a research lab. Nero, with Naval Intelligence, joins the investigation when the team discovers a rare and deadly virus was also stolen.
Erika is excited when Lisa Rinna introduces actress Denise Richards to the group; Lisa Vanderpump struggles to come to terms with her grief after a personal tragedy; Dorit is concerned that Teddi will twist information about her family’s dog.
A student tunnels beneath the Berlin Wall, Edie Windsor topples the Defense of Marriage Act, and John Wojtowicz robs a bank to pay for his wifes gender reassignment surgery.