Brazil's Cerrado How have tiny termites and giant anteaters come to dominate the Cerrado? Explore these vast grasslands where monkeys walk upright and wolves eat fruit. 0700 0600 How are sat nav systems made so that they can pinpoint exact positions in everything from jets to tankers? And the kitchen classic, tin foil, is looked into. 0730 0700 Follow the amazing manufacturing processes behind crosscut saws, haggis and collectible firearms. 0800 0730 Paul Jr's decision to put Odie in charge of the Bling Star bike backfires when he doesn't meet the deadline. And Mikey suggests family therapy - but will Sr be up for it? 0900 0800 Ski Plane Chief pilot Arnie tries to teach AJ and Andrew how to land a DC-3 mounted on snow skis. It's a tense time at Buffalo when a major contract comes up for renewal. 1000 0900 Lotus Elan The boys are challenged to find a Lotus Elan that hasn't been snapped up by restorers. Once they've tracked one down, Mike falls in love after minutes behind the wheel. 1100 1000 Battle Stations After the Bob Barker and Gojira launch a successful attack on the harpoon ship that has been following them, they continue their search for the Nisshin Maru. 1200 1100 James Cracknell follows Geordie Stewart's epic attempt to be the youngest Briton to climb the highest mountain on each of the world's seven continents. Will Geordie succeed? 1300 1200 Armoured Personnel Carriers From armoured personnel carriers to recon vehicles and gun trucks, discover the vehicles that keep foot soldiers informed, ready for action and alive. 1400 1300 Hitler was the master blackmailer, deceiving his party and the German people. His deception of the Western powers allowed him to capture both Austria and Czechoslovakia. 1500 1400 Was Hitler's invasion of Russia the greatest military gamble of all time? A swift attack would, he thought, deliver victory - Germany had only to avoid a prolonged conflict. 1600 1500 Endless Edgar Hansen is fed up with the 22-year marathon of pain and finally confronts older brother Sig. Meanwhile, the Opilio Season ends with a harrowing mayday. 1700 1600 The Gallery 63 team auctions a historic Charles Lindbergh scrapbook and a collection of antique toys. Will Paul's gamble on a rare Wurlitzer band organ pay off? 1730 1700 The team auctions an MLK-signed letter and some very expensive Finster doll furniture. Paul and Bob try to entice Paul's son Elijah to join the family business. 1800 1730 Alaska Special 2: The team gets some northern exposure as they pack up their sleds and their ingenuity for an action-packed Alaska special. 1900 1800 Patagonia, Part 2: Bear Grylls continues his quest in Patagonia, highlighting the dangers and challenges he faces and the techniques needed to come out alive. 2000 1900 Sheriff Jesse takes down a nip joint, while Tim and Tickle's first run of whiskey is threatened by an intruder. Will Popcorn have better luck shifting his 'shine? 2100 2000 The Mutilator In Papau New Guinea rumours of flesh-eating pacu are haunting locals. How dangerous is this fish and has it really developed a taste for parts of the male anatomy? New. 2200 2100 Flying Guns and Uzis Will and the crew are now building guns for helicopters! Meanwhile, Will takes a stock Uzi and makes it competition ready, and Stephanie goes on a wild ride. 2300 2200 Family Feud Jack and Todd argue over how to set up their claim. At Porcupine Creek, Dakota Fred finds gold and at Big Nugget mine, Parker continues to hit pay dirt. 0000 2300 The Mutilator In Papau New Guinea rumours of flesh-eating pacu are haunting locals. How dangerous is this fish and has it really developed a taste for parts of the male anatomy? 0100 0000 Flying Guns and Uzis Will and the crew are now building guns for helicopters! Meanwhile, Will takes a stock Uzi and makes it competition ready, and Stephanie goes on a wild ride. 0200 0100 Endless Edgar Hansen is fed up with the 22-year marathon of pain and finally confronts older brother Sig. Meanwhile, the Opilio Season ends with a harrowing mayday. 0300 0200 Ski Plane Chief pilot Arnie tries to teach AJ and Andrew how to land a DC-3 mounted on snow skis. It's a tense time at Buffalo when a major contract comes up for renewal. 0350 0300 Lotus Elan The boys are challenged to find a Lotus Elan that hasn't been snapped up by restorers. Once they've tracked one down, Mike falls in love after minutes behind the wheel. 0440 0350 Ring of Fire, Part 1: Bear Grylls drops into the Pacific Ring of Fire to an area devastated by the 2004 tsunami. He must use all his ingenuity to find food and fresh drinking water. 0530 0440 A dropped grenade leads to a series of massive explosions, a plane crashes near a baseball game, and firefighters survive a backdraught that lifts a house off its foundations. 0600 0530 African Rift Valley Lakes Up to 1,900 species of cichlids inhabit the Rift Valley lakes - how have these fish developed parental skills to rival mammals? And why do chimps hunt? 0700 0600