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A new spate of nightmarish murders brings DCI John Luther to once again face the depths of human depravity on the streets of London; as the body count rises, Luther attempts to catch a killer and save his own neck.

The Portuguese explorers of the Age of Discovery; why a Lisbon castle is dedicated to the patron saint of England; tiny tiles tell the history of Portugal.

Carbon dioxide released from Maug Island's caldera will allow scientists to study the impact of ocean acidification on coral reefs.

An all-standing workout to help improve the mobility of the spine.

Fun music helps Mary Ann Wilson demonstrate breathing techniques and sensory awareness.

Using yoga postures such as Revolved Warrior II to help find balance within the asymmetries of the body.

Contraptions full of gears, from water wheels to wind turbines; designing a gear box for a wind turbine; rust eradicator Candee Williams.

Putting money in a safe place; avoiding identity theft; Washington State Attorney General Rob McKenna.

Space Monkeys steal Zula Patrol headquarters; Deliria creates a monster concoction she calls "The Blorp.".

Performing the diving pose to strengthen the back and thigh muscles; improving balance with the tree pose.

A gentle seated yoga practice to create more ease in the whole body includes stretches for the hands, shoulders, back, hips and legs.

A workout to loosen and liberate the entire back.

Various exercises and accessories.

Featuring Mississippi mud pie, small food processors and homemade whoopie pies.

The history and culture of Kielce, the capital city of Holy Cross Province in south central Poland; homemade culinary traditions include zalewajka.

Smoked lettuce salad with Japanese cured eggs; maple-cured bacon; smoked corned beef with caveman cabbage.

Niko's vegan bouillabaisse; mini spiced chocolate cakes.

Sweet and sour pork; Cantonese stir-fried black pepper beef and potatoes; hot oil-flashed garlic-ginger shrimp.

Majestic mountains overlook a little cabin in the valley.

Adding details and finishing touches to the swans.

Lavender farm; homemade ice cream.

Creating curb appeal; achieving a nice landscape without spending a fortune or endangering the environment.

Traditional beef stew; chef Chris Ikeda puts a modern spin on the classic loco moco.

A border quilt features 24 bright and easy stars.

Bula tells Gorga's backstory, which included performing in the circus; Madame Luna claims she can predict the future.

Cora opens a lemonade stand; Rae focuses on giving her customers the haircuts and colors they want.

Exploring the Cathedral Gorge State Park; Nevada Northern Railway Museum; Garnet Hill Recreation Area; an artisan makes tule duck decoys; the local Basque culture and wild horses in the Carson Valley.

Jaqueline and Chris help a single mom build her confidence to ask for a promotion, and help her realize her power to become a strong role model for her sons.

Author Kerry Hannon talks about why people should change the way they think about retirement; when and how to plan retirement.

What is needed to keep electric vehicles charged up and on the road; keeping excess fresh fruits and vegetables out of the landfill and available for those who need them.

Portland Head Light is a historic lighthouse in Cape Elizabeth, Maine.

Explore the many water-related recreational opportunities in the central Florida.

Alexa investigates the death of a tango club's young teacher, and finds herself in a dance with danger.

Newly-retired Foyle takes on a case that will shatter his personal world.

Brent meets a new member of his extended family; Karen helps Wanda showcase her math skills; Ruby makes menu changes.

A visit to Africa includes street food in Entebbe, Uganda, rafting down the Nile River, gorilla trekking, visiting banana and coffee farms and training with a local baseball team; host Peter Greenberg.

Alexa investigates the death of a tango club's young teacher, and finds herself in a dance with danger.

Newly-retired Foyle takes on a case that will shatter his personal world.

Brent meets a new member of his extended family; Karen helps Wanda showcase her math skills; Ruby makes menu changes.

A visit to Africa includes street food in Entebbe, Uganda, rafting down the Nile River, gorilla trekking, visiting banana and coffee farms and training with a local baseball team; host Peter Greenberg.

A program to save wild mustangs in California; a South Dakota farm family brings wheat to the dinner table; a California winery once owned by a film director dedicated to sustainable growing; efforts to save tall grass prairie in Kansas.

The ins and outs and pros and cons of cruising, including making smart use of limited time on shore and the congestion and commercialism that comes with mass tourism.

A full-body, all-standing workout to strengthen all 650 muscles.

Performing the diving pose to strengthen the back and thigh muscles; improving balance with the tree pose.

Singing about things that are blue; Story and friends write a story about Wimee stepping in blueberries; "Blue Floats Away"; water cycle poster; the Alphabet Game.

Stories behind the Frisbee, Slinky and blue jeans; an entrepreneur's lemonade stand became so successful she was able to make over an entire park.

Deliria and Cloid start to remove craters from every moon, planet and asteroid; Dark Truder moves his secret hideout into Zula Canyon.

An accessible yoga practice using a chair for support, including a standing sequence designed to create more freedom and mobility in the hips while building strength, balance and focus.

A full-body workout with a focus on upper body strength.

Keeping feet happy and healthy.

Roasted goat with Naxian potatoes; stuffed vegetables; roasted lemon potatoes; Lazy Chef's stuffed vegetables.

Honey-roasted peanut crispy rice treats; honey-glazed chicken thighs; reviving crystallized honey; a spiced honey cake pie.

A plant-based morning meal consists of vegan spinach-tomato omelet, baked home fries, breakfast sunshine salad and coconut-grape muffins.

Hand-crafting bean-to-bar chocolate at Askinosie Chocolate, where the team helps to create economic opportunities for farmers through direct trade.

Cherry tomato jam with red wine and scallions; citrus chicken with carrots and baby potatoes; bell peppers, cucumbers and chickpea salad; vanilla custard.

Hiking along a winding dirt road that leads to a weathered old barnhouse.

Regional traditions surrounding salmon in Washington; drift net fishing with the Upper Skagit Indian Tribe, then smoking the fish over alder wood; how to process salmon roe; sampling salmon collar at Pike Place Market.

The three products are presented to a consumer focus group; marketing and packaging strategies are created.

The strange plants and animals of the Apalachicola National Forest in Florida.

Horticulture expert Dr. Chris Cooper and other experts share their garden wisdom and answer e-mails and letters about lawn and gardens.

A glassblower works in abstract art; sacrifices to starting up a business; temperature inside a glass studio; making a glass cup.

Wilson shoots the patrollers through space; the Sun's Aunt Dorothy wants to compete in the Star Games.

The true cost of purchasing with credit; employers, insurers and colleges use credit scores to make major decisions that could affect a person's future.

Striking a balance while camping with friends; how different parts of the RV use power; bringing the family car.

PalletFest puts upcycled art and fashion on display; a designer makes clothing out of discarded bike tubes; turning shipping pallets into sculptures; artists turn trash into treasure.

Author Tom Corley discusses the habits of rich people that help them achieve multiple income streams; the challenge of money abstraction.

Scientists in Hawaii and Alaska study why sightings of humpback whales dropped.

Interviews with world leaders and newsmakers.

CEO Andrew Holland, Fusion Industry Association, talks about technology that produces vast quantities of energy with very small quantities of waste.

As Finn considers a life-changing decision, Nicole tells Clint that she's pregnant, the only problem is that Callum could be the father.

Mrs. Tishell's young cousin shadows her at the pharmacy for some work experience; Al decides to move in with Morwenna; Angela visits Martin's surgery and notices something wrong with Buddy.

Daisy gets her hands dirty with Tippy and Gus; Louis gets more insight from Hilary than he bargained for; Daisy and Louis hope to ease their financial woes with a visit to the bank.

Music by Bach, Debussy and Liszt; a Dvorák Bass Quintet.

As Finn considers a life-changing decision, Nicole tells Clint that she's pregnant, the only problem is that Callum could be the father.