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.
When Danger Force accidentally forgets about plans they have with Ray, he surprises them with a brand new member of the team to make them jealous.
The Titans must help De La Soul save their music after it is stolen by an alien.
When Yoon Chul introduces Yoon Hee as his wife, everyone gets shocked especially Eun Byeol. Seo Jin can’t stop thinking about Yoon Chul and it leads Seo Jin and Dan Tae to have a huge fight. Meanwhile, the doctor warns Seo Jin not to sing for awhile, but she can’t give up on her concert as it can damage her reputation.
Marsau tells Tisha that Kimmi has sanctioned Wanda from future events; Melody is over all the drama and Martell's bad behavior; Tisha confronts Kimmi over banning her mom; things get heated between Martell and Marcus over things the kids have said.
Set in Central Michigan's farm country, this reality series follows the work done at Pol Veterinary Services. Specializing in large farm animals, Dr. Pol treats horses, pigs, cows, sheep, alpacas, goats, chickens and even an occasional reindeer. The program also features Dr. Brenda Grettenberger, who has worked with Dr. Pol since 1992.
A run-in on the plane reminds Yu-sin of his first encounter with an aspiring model. Sa-hyeon is captivated by an attractive gym-goer.
When Duncan realizes Chef is getting kids to tattle on him in return for chocolate milk, he sees an opportunity.
All eyes are on the Granedger as it closes in on the wall to destroy it. While Rekka waits for the right chance to strike, Shu Bi pulls out the big guns.
In 2001, a young couple were brutally assaulted in Salisbury, Wiltshire. Over a decade later, new DNA technology helped lead investigators to the attacker.
Craig, Kelsey and JP try their luck at winning Gold in their first ever Winter Creeklympics, which is a big event for the area.