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Aston Martin DB6: Steve's health problems have left him unable to restore his beloved Aston Martin. Can Tim and Fuzz surprise him by secretly fixing it up? RATING: AA (S5, ep 4)

Explosive Proof: Authorities suspect a terror attack when a plane explodes after taking off from JFK. The FBI joins investigators in their search for answers. (S16, ep 4) Rating: All ages

Zero Hour: On the morning of September 11, 2001, nineteen al-Qaeda militants seized control of four passenger jets. Chilling audio recordings from the planes reveal the horror. 16+.

Underwater Alert: Coastguards discover a new strategy by traffickers, while jet skis are detected creating dangerous situations along the Costa Dorada. 7+. (8 of 8)

Hot Springs Hotel: The team head to Hot Springs, where they search for profits among the rooms of the Majestic Hotel, famous for hosting Babe Ruth and Al Capone. (S1, ep 5). All Ages.

Newcomers: The hunters visit a local dentist in search of precious metal to melt for cash. Plus, can they find treasure in medical supplies and aeroplane engines?. All ages.

Newbies Dash For Cash: The treasure hunters visit estate sales and auction houses in search of silverware. But can they bag profit-making pieces at the right prices?. All ages.

Pickled Peppers & Bagels: Visit the town of Mt. Olive, where there are no mountains or olives but lots of pickled peppers, before discovering New Yorker Bagels' secrets. U. (S2, ep 16)

Bubblegum, Horseradish & Cupcakes: Shine a light on the innovative cupcakes linked to a national security incident, a tear-inducing horseradish and a top-selling chewing gum. U. (S2, ep 17)

Falkland Island Invasion: Explore the life or death journeys of migrating animals across the world. In spring, animals from all over the South Atlantic descend on the Falklands. (1 of 10)

Monarchs Amazing Journey: A look at the monarch butterfly's incredible multi-generation migration from Mexico to Canada - a round trip that none of them live to complete. (2 of 10)

Teleshopping. U.

Teleshopping. U.

Teleshopping. U.

Teleshopping.

Teleshopping.

Working for Peanuts: Get the scoop on Planters salted cocktail peanuts and cheese-filled jalapeno peppers, and discover the secrets behind Old Montreal steak spice. RATING: AA (S4, ep 21)

Miso Hungry: Discover the secrets behind candy-covered almonds, the hole-free bagel, S'mores snack mix, and the mother lode of miso soup. RATING: AA (S4, ep 22)

A closer look at three air tragedies reveals what happens when commercial planes get caught in the heat of war. U. (S1, ep 5)

Hitler's Vengeance Weapons: In 1942, the Nazis develop the world's first cruise and ballistic missiles. Can the Allies stop Hitler before he rains down terror from above? U. (S1, ep 2)

Sink or Swim: Bjoern risks everything to rescue a tractor, Thord gets stuck in the mud while helping a truck and when a winch wire slips, Jo fears disaster. U.

Aston Martin DB6: Steve's health problems have left him unable to restore his beloved Aston Martin. Can Tim and Fuzz surprise him by secretly fixing it up? RATING: AA (S5, ep 4)

Breakup Over Texas: Near the end of its one-hour flight, Continental Express Flight 2574 dropped from the sky, killing all on board. The cause? A simple maintenance error. RATING: AA

Manchester Runway Disaster: On 22 August, 1985, 55 people died aboard British Airtours flight 28M when its engine failed during take off. (S8, ep 1) RATING: AA

Origins Of The Holocaust: Previously unseen footage reveals how, as Nazi soldiers enjoy rest and recreation in Paris, Jews and Polish prisoners are forced into slave labour.

Invasion USA: A shipwreck is thought to be a lost flagship from the War of 1812 and an artist uncovers her ancestor's link to the burning of the White House. U.

Ford Mustang: The boys take on one of the worst cars they have ever seen - an extremely rusty 1966 Mustang which has been cherished by 71-year-old caretaker John for over 40 years. U.

Hitler's Arctic Fortress: Looks at the Nazi occupation and defence of Norway - a frontline from which Hitler could attack the Soviet Union and build an atomic bomb. (S4, ep 4) RATING: AA

Air France 447: Vanished: With wreckage lost in the Atlantic Ocean, the crash of Air France Flight 447 in 2009 launched one of the toughest disaster investigations of all time. RATING: AA

Rockslide: Hauling cargo over the mountains, Jordy and Justin pass through the treacherous rockslide zone, while Jimmy gears up for his first day in the steel gang. 16+. (S1, ep 5)

Triple Threat: Fat Tuna fights to hold on to their lead, as mates Paul and Dave continue to work together. Meanwhile, the rest of the fleet races to close the gap. 16+. (S13, ep 11)

Return of the Caribou: Tig Strassburg and his daughter Hazel battle the elements in search of bull moose, while Jody Potts-Joseph follows the returning caribou. 7+. (S3, ep 3)

Lethal Turn: Experts examine why Garuda Indonesia Flight 152 crashed into the jungle, killing 234 people, when it was minutes away from the Medan airport runway. (S16, ep 10) RATING: AA