Colt and Vanessa come face to face with Jess and her new husband, and Danielle confronts Mohamed.
Joe Crowley discovers how science is helping better understand nature on Bedfordshire’s Greensand Ridge. He gets up close with avian giants, finding out how the world’s longest-running bird survey helps monitor heron numbers. He gets on his bike to help map the amount of plastics polluting our rural landscape, and is out on toad patrol, helping create a new national DNA database to discover why these amphibians are in trouble. As spring appears, Adam finds out if his farming gambles are paying off, Tom investigates whether the UK’s environmental ambitions will change the face of our national parks and areas of outstanding natural beauty, and naturalist Dan Rouse captures the seasonal spectacle of thousands of oystercatchers on the Gower Peninsula.
Guy Fieri hosts as Tournament of Champions continues with first round battles. In one-on-one sudden death confrontations, three chefs conquer their opponents and the Randomizer to move on to the quarterfinals, and three chefs are eliminated and head home.
An anonymous insider gives Cullen a tip suggesting 8chan may have ties to Trump's inner circle. A rivalry emerges between old allies.
Jim goes before Congress for a hearing on hate speech. Cullen chases a lead suggesting Steve Bannon might be involved with Q.
When McCall tries to locate a missing British mathematician, she finds herself embroiled in an international fight for a revolutionary financial technology.
Alba wakes up on a beach after a rape she doesn't remember. And then she discovers that her rapists are friends of her lover.
The four remaining teams pan for gold to earn their seed money, and some teams gain a clear head start on shopping and selling. Meanwhile, extreme cold and winds continue to challenge everyone. Tyler Florence issues a challenge to the teams to use a quintessential Alaskan ingredient -- crab -- to create a special dish for their menu, and the team that sells the most will win an extra $500 in their till.
Yoon Hee accepts Ae Gyo’s plan as she realizes that Ae Gyo was Su Ryeon all along. Ro Na also participates in her plan, to help her. Therefore, the police find Su Ryeon and Ro Na in the basement underneath Dan Tae’s cottage. Meanwhile, the residents are worried that Su Ryeon came back alive as they are guilty of what they’ve done to her in the past.
Martell gets help from Dr. Francis; Marsau and LaTisha hold the soft opening of their cigar lounge, Blaque; Martell takes issue with Marcus' sexuality, leading to a volatile confrontation with Melody.
Katrina and Jack visit a mansion in Denver rumoured to be beset by scandal, death and ghosts. But, their client is sceptical that it is paranormal activity.
When chicken pox sweeps through the school, the kids visit the Chicken Queen to apologize for past misdeeds.
When a career predicting machine tells Owen he has no skills to offer the world, he decides to find a way to prove the machine wrong in the most Owen way possible.
Izzy is determined to win a big race with the help of her Special Olympics athlete cousin, Lily; after Lily misses a training session and Izzy rejects more help, her sportsmanship is put to the test.
Sandi Toksvig discuss animals which start with an 'R' with Tom Allen, Ed Gamble, Maggie Aderin-Pocock and Alan Davies.
Desperate for fun, Polly breaks out on her own and finds an unlikely new friend in the process.
Tedward KidDINGs the kids to enroll in Jaget's new martial arts class, Jag-Jitsu. While Lex, Presley and Munchy don't feel like they've actually learned anything, Jaget still signs them up to take on a rival martial arts class.