After Iris lands in serious danger, Nora races to save her mother. Barry puts the finishing touches on the meta-human cure, leaving Cisco with a rare night off so he decides to take Kamilla on a date.

Katie plans a "friend date" in hopes of reconnecting with Taylor; Greg attends self-help seminar with Oliver; Anna-Kat takes extreme measures to secure her place as Katie's favorite child.

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.

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 a malnourished and confused 9-year-old is found hiding in a storage unit, NCIS reopens an old missing persons case when the girl is believed to be the daughter of a Navy recruit who disappeared 10 years ago. Also, Bishop discovers notes that Special Agent Ziva David kept on the case long after NCIS officially stopped investigating.

Callie plans to disclose her connection to Malika to Judge Wilson before Ben has the opportunity to undermine her. Mariana gets boxed out of working on a big new project by Alex.

To inspire Timmy to take better care of his personal hygiene, Peggy decides to take matters into her own hands and tricks him in hopes of solving the problem. Meanwhile, a concerned Mike fears that Peggy's meddling is causing Timmy to develop insecurities and robbing him of his passion for performance. At school, Timmy receives a Valentine's Day card from a secret admirer and becomes unnerved by the possibility of having a mystery suitor. Elsewhere, Eddie reports a recurring incident to Wendi's boss in an attempt to be helpful, but his chivalrous deed backfires.

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.

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.

Kevin attempts to help Nicky; Randall and Kate reflect on differing memories of their childhood.

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.

Maggie and OA are on a mission to find a couple who are behind a spree of violent armed robberies that resulted in the death of an off-duty police officer.

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. Kyle and Alex uncover a secret that Kyle's father had been keeping from everyone.

A stunning structure uncovered in Smith's Cove perplexes the brotherhood like never before; 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.

Wyatt is in jail; the Cryers secrets may make it out before he does.

An unexpected visitor forces Don to reevaluate his new life; the Clarke family tries to pick up the pieces after their devastating loss; and Patrick's loyalties are tested as the cop killer investigation heats up.

Senior and Junior begin restoring a 1951 Buick, but don't always go by the book. Senior risks everything by moving designs away from their famous choppers. Junior challenges himself to build a streamlined bike for the MLB Network to impress his dad.

After a doctor's visit, Arthur learns he's under high stress due to Valentine's Day approaching. To de-stress, Arthur suggests his concerns to Camille and asks if they can take a break from the holiday which causes them to fight. He shows up at Lena and Martin's house, where they help by taking him in. Meanwhile, Maya and Camille express disapproval when Lena decides she wants to cook a platonic Valentine's Day dinner for Martin at home. Elsewhere, Mason organizes a Valentine's Day flash mob for his girlfriend.

People going to extremes for love, including a student who tunnels beneath the Berlin Wall, Edie Windsor topples the Defense of Marriage Act, and John Wojtowicz robs a bank to pay for his wife's gender reassignment surgery.

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.

Max continues to work to solve underlying problems within the hospital despite his continuing struggles with treatment. Meanwhile, Reynolds makes the choice to do a costly surgery to determine an elusive diagnosis and Bloom must face her personal demons head-on.

The most dangerous day of the year - Valentine's Day - has the team on high alert, and Officer Nolan invites everyone over for a party now that he is single.

After mysterious green fireballs nearly cause nuclear disaster during a weapons test, Hynek and Quinn must investigate how this could have occurred, each with altering theories as to what's really going on.

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.

Jake, Matt, John and Kate get grilled by a dogged Hampton DeVille accountant after eating an expensive dinner.

Frustrated with the mess that earth's become, God contemplates the end while two determined angels try to change his mind.

President Trump holds a rally in El Paso, Texas, notorious drug lord Pablo Escobar's hippos take over Colombia, and writer and director Spike Lee discusses "BlacKkKlansman".

Coming Soon...

Jimmy welcomes Will Forte, Gigi Hadid, Blake Mycoskie and Gashi ft. G-Eazy.

Stephen welcomes actress Regina King, philanthropists Bill and Melinda Gates, and comic Jena Friedman.

Penelope catches Alex smoking pot at a concert. When Lydia develops a cough at the opera, she tries Dr. B's special lozenges.

There's an exclusive fashion show at the local nursing home. Somehow Anna and Maya make it in, but feelings of inadequacy lead them down a shady path.

James welcomes actress Rebel Wilson, actress Priyanka Chopra Jonas, and magician Justin Flom.

With Swanny on her back desperate for his money, Sam's world falls apart when her landlady returns with some devastating news.

In the not-too-distant future of Weird City, Stu and Burt discover that dating is not what it used to be, and love can be found in the most unexpected places.