Interviews: Francis Collins, James Park, Randi Weingarten, Roxane Gay, Darren Walker, Cornel West.
Bart finds his old teacher's diary and learns a surprising secret. Then, Lisa discovers an even bigger surprise.
Louise convinces her parents to cash in on the lucrative Valentine's Day dinner business, even though it means putting Bob and Linda's own Valentine's Day plans on hold. Meanwhile, Tina attends Tammy's Anti-Valentine's Day party.
When Callen goes to the National Counterterrorism Center on the pretext of interrogating a Russian asset from the crashed plane case he investigated months earlier, the tables are turned and he is detained, accused of being a Russian agent.
Officer Nolan’s decision to return to school in order to become a training officer is proving to be much harder than he expected. Meanwhile, Officer Chen considers going into undercover work after getting a taste of the job when Harper’s former colleague needs help.
Main story: Working conditions in the meatpacking industry; plus, the Texas power crisis in the wake of severe winter weather.
Pride and the team are on the hunt for a kidnapped 14-year-old and discover that her father, who will soon have custody of her, is a radical survivalist living off the grid.
[To the Late Are Left the Bones] Harrow proves a suburban suicide is in fact murder, uncovering one family's secrets as he is forced to hide his own.
Elizabeth tries to deal with how she feels about Nathan and Lucas; a visitor causes trouble.
After the birth of Talbert the giraffe, complications arise and the Irwins worry for his life. Robert rescues an entangled black swan caught in fishing line, while Bindi and Chandler plan for Kingston the rhino's first birthday.
The ladies participate in a dungeon-themed surprise bachelorette party for Cynthia; when the cameras stop for the night, the ladies continue with a crazy, hours-long after party that leads to accusations, denials, and the breaking of girl code.
Fiona Bruce and the team are at Windermere Jetty Museum in the Lake District, where finds include a James Bond poster, a tribal mask and rare necklaces with surprising values.
Julia thinks she's pregnant. Stephanie and Ryan have an explosive fight. Natalie demands answers. Jovi upsets Yara at their engagement party. Rebecca worries that Zied will change his mind. Tarik and Hazel pursue finding a girlfriend.
It's Bread Week once again and the nine remaining bakers must prove they can rise to the occasion.
The gang encounter a new, magical obstacle as they try to relaunch themselves in the human world.
The team treads on dangerous ground while hunting down the Smoke Wolves.
Batwoman is approached by Commander Kane and Agent Moore to boost an infamous work of art that reveals the way to Coryana - and Kate. Despite her reservations, Luke and Mary convince Ryan to take the assignment, causing tensions within the Bat-team to escalate. Meanwhile, as Alice attempts to fulfill Safiyah's insidious request, she slowly discovers that she may not remember everything about her time on Coryana.
A psychic tells Jenny she's cursed after attempting to get a refund for wrongly guessing Betty's death day. Meanwhile, Wayne's fishing trip with some wild work buddies turns into a manhunt for a dangerous species.