Join scientists on a quest to better understand the weather and climate machine we call Earth. Why do scientists overwhelmingly agree that our climate is changing, and how can we be resilient—even thrive—in the face of enormous change?

As Riverdale High begins rehearsals for its upcoming production of "Carrie the Musical," the arrival of an ominous letter forces director Kevin to make a difficult decision about the show. Jughead uses his cover as the musical's documentarian to solve the mystery behind the letter. Meanwhile, tensions between Betty and Veronica continue to escalate just as Alice announces she is joining the musical to spend more time with Betty. Elsewhere, Hiram enacts a devious plan to further drive a wedge between Fred and Archie, while Cheryl channels Carrie White during a showdown with her mother.

A classic SURVIVOR eating challenge is back, and individual immunity is on the line.

Johnny Gargano makes his return to NXT. Killian Dain and Lars Sullivan do battle in a No Disqualification Match.

Join scientists on a quest to better understand the weather and climate machine we call Earth.

Alexis receives a very cold shoulder from everyone on set after her reality show's scandalous reveal.

In the final night of live playoffs, the remaining artists from Team Kelly and Team Adam perform for the coaches and America's votes in hopes of landing a spot in the Top 12. Each coach will also pick one artist to take the last spot on their teams.

Although Lucious pressures Cookie to take it easy, she can't help but take matters into her own hands when she receives unsettling news about an old friend. Meanwhile, Tiana's new 20 for 20 single takes off, leading to an unexpected change in her demeanor. Also, Jamal struggles to rebrand his image, Hakeem adopts a new role as musical mentor and Andre recruits Lucious to help him uncover the truth about Eddie's intentions.

A 400-lb. woman learns that she's pregnant, but wonders if she'll be able to deliver the baby without complications; a woman who lost 400 pounds is in a relationship, but it could be in jeopardy when her weight-loss journey stalls.

Racers arrive in Dunn, North Carolina for the seventh race in the No Prep Kings series. After weeks and weeks of racing, many of the racers are struggling to keep their cars running, and in a points series, consistency can be just as important as speed.

Rooni's mother, Joya, comes to New York and Alex tries too hard to impress her, including a disastrous celebration of Holi which makes him look worse. But a conversation between the two leads to a surprising development for Alex's new company. Meanwhile, Ben wants to learn more about his heritage from his grandmother to impress a girl in school.

Desperate to see her father Klaus after seven years, Hope resorts to drastic measures to bring her father back to New Orleans. Hayley attempts to minimize the fallout from Hope's actions, but not before news of what she's done ripples through the city. Meanwhile, Freya's guilt over not being able to reunite her family gets in the way of her happiness with Keelin, while Rebekah struggles with her inability to fully commit to Marcel. Finally, struggling without Elijah by his side, Klaus' murderous rampage throughout Europe leads to an unexpected encounter with Caroline Forbes.

Major competition ensues between Midtown Sound artists Take 3 and Noah Brooks when they fight for a coveted track produced by one of the industry's hottest producers. Blasts from the past are in full effect when Paola and Jahil explore their complicated history, Noah and Alex revisit their time together and Derek invites a date to the salon's reopening celebration.

The BAU is called to Taos, N.M. to investigate an UnSub who is targeting his victims' temporal lobes.

The search for an abducted woman and her young daughter leads Lt. Benson to cross paths with an old friend. Meanwhile, Stone must make a tough decision on behalf of his sister.

People using science to master mayhem. Included: epic railguns; punching robots; and ng bowling ball launchers.

The Rocinante answers an unexpected distress signal; Bobbie and Avasarala find themselves being hunted by a mysterious captor; UN Secretary-General Sorrento-Gillis brings in a colleague from his past to lend an ear during this crucial time of war.

The five chefs must prove their versatility as they take on the Chairman's Challenge to create a dish that epitomizes the cuisine of one of five countries: Thailand, India, Spain, Greece or Japan. It's clear that no one is safe when a previous week's winner lands on the bottom. Then, the competition is neck and neck when two chefs face a particularly tough Secret Ingredient Showdown featuring a game meat, and judges Anne Burrelland Iron Chef Jose Garces send one chef home.

A couple searches for a luxurious class A motorhome for their sporty family's adventures. Their wish list includes a king-size bed, a bunkhouse and an engine with at least 450 horsepower. With a $255,000 budget, will they be able to find the perfect RV?

Jeff Devlin and his crew are called in to transform a dated kitchen and unfunctional dining room in a 1700s farmhouse. Once they dive in, they uncover a surprise within the dining room's mysterious closed-up fireplace before revamping the kitchen with a custom-made reclaimed wood island.

Mike and Frank become starstruck as they search for blockbuster movie picks.

As the racers move into the later rounds of the second to last points race, all eyes are on Chuck, Birdman, and Ryan Martin. A win in North Carolina could put Ryan one step closer to winning but one slip up, and the others could make moves to overtake him.

Jeff Devlin and his team are recruited to bring back some much-needed character to the master suite of an 1839 farmhouse. The renovation includes exposing a floor-to-ceiling chimney and creating a custom vanity out of old barn beams.

After picking up a distressing piece of intelligence, Elizabeth takes extreme measures to get close to a Soviet negotiator. Philip shares some stunning news with Henry.

When Reid discovers former FBI Special Agent Owen Quinn locked inside a storage unit, the BAU questions the credibility of Quinn's bizarre accounts of searching for an UnSub that he named "The Strangler".

Season 27 begins as MMA stars Stipe Miocic and Daniel Cormier captain teams of undefeated lightweight and featherweight fighters competing for a UFC contract.

Ali Khan has 12 hours and only 35 bucks to find the best deals in Greenville, South Carolina, for breakfast, lunch, dinner and a snack. Nestled in the foothills of the Blue Ridge Mountains, the town boasts a quaint Main Street, hundreds of restaurants and a killer food scene. Ali starts his day off in true Southern fashion with a buttery "cathead" biscuit and country-fried pork, and then he makes his mark while getting his burger on ... au poivre-style! After he gets his chocolate fix with a light, creamy chocolate mousse, Ali wraps up his day with fresh, fusion tacos filled with a decadent duck mole and Bangkok shrimp.

After Voight witnesses the kidnapping of a young woman with a mysterious connection to his past, Intelligence works to find a connection between her kidnapping and several bank robberies. Ruzek gets a tip that a grand jury has been summoned, putting Olinsky one step closer to standing trial for Bingham's murder.

Seg tries to survive his escape from the Commander and his people, running low on heat and oxygen. Meanwhile, Lyta gets a stay of execution but dishonors Jayna in the process.

As more content from President Kirkman's confidential therapy sessions continues to leak out, Vice President Darby meets secretly with the entire Cabinet, resulting in attorney Ethan West looking into the president's past – while playing a large role in his future as commander in chief.

A pillar of the Korean community is murdered in broad daylight on the doorstep of her beauty supply store; when the trail of physical evidence runs cold, Detective Rod Demery must rely on shoe-leather detective work to catch the killer.

The ghouls focus their efforts on a 1970 Dodge Daytona.

Full Frontal floats a radical idea for helping out Syrian refugees, bids adieu to the 'Pride of Janesville,' and breaks out the Sean Hannity conspiracy yarn. Meanwhile, Allana Harkin rounds up the 'Reefer Safety Sanity Army' to help our vets.