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Call For Help: At night, the fire department receives multiple calls, sending the small crew of volunteers into action to save a historic building and family home. (S1, ep 2)

Bananas and Blow: At Philly Seaport, CBP finds containers loaded with coke. In El Paso, the cartel thwarts HSI's controlled delivery of 40 kilos of marijuana. 12+. (S5, ep 3)

Vermont Marble Factory: The guys search the factory where marble was made for the US Supreme Court. They also find White House blueprints in an old bomb shelter. (S1, ep 12) 7+

Gas Tank Meth: HSI San Diego tails a suspicious pickup truck, which is found to be concealing 26.5 kilos of meth inside the gas tank.

Powdered Rims: HSI Puerto Rico intercepts a shipment of 66 kilos of cocaine bound for Pennsylvania worth nearly $2 million. 7+

Night Shift: Dogfish & Beets N' Corn: While a crew of fisherman tackle a mega order from Harvard University, two farmers scour their fields for super fresh veggies. (S5, ep 24) 7+

Night Shift: Corndog Shrimp & Chicken Tikka Wrap: It's all hands on deck on a Louisiana shrimping boat, while caterers rush to feed Canada's busiest airport. (S5, ep 25) 7+

Girl Nest Door: Paco the sun conure has a giant egg that won't come out. Jimmy Dean the baby pig comes in with his dog best friend, who has a suspicious lump. (S1, ep 12) 7+

Forgive But Not Ferret: Xanthus the ferret is rushed into the clinic for emergency care and a young marmoset has a gender reveal party. (S2, ep 1) 7+

Teleshopping.

Teleshopping. 7+

Teleshopping. 7+

Teleshopping.

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Explosive Alert: Humanitarian crises intensify under the cover of darkness - but the discovery of an explosive in the port is anything but routine. (3 of 8) 7+

Who's At The Controls? The pilots of an Eastern Airlines flight became concerned that their landing gear was not locked for landing. Did this distraction cause the plane to crash? 7+

The Second Viking Age: The mid-10th-century reign of Harald Bluetooth marked the start of a second Viking age, but it was not to last. Discover the final days of the Vikings. (S1, ep 6) 7+

Titan of the Rising Sun: Rob Kraft is hunting for Musashi, the biggest battleship ever built and considered to be unsinkable by the Japanese. (S1, ep 7) 7+

Sub-Zero Supermachines: Discover the machines making the coldest parts of our world inhabitable, from ice breakers to snow ploughs to an all-terrain vehicle. (S1, ep 4) 7+

Rover Sd1: Landscape gardener Darren's 1986 Rover SD1 was once his pride and joy, but when tragedy struck it ended up rotting away in a dirty lock up. Can Car SOS come to the rescue?

Divided in Crisis: Air traffic controllers hear an explosion when an Air Algérie flight lifts off. Moments later, the Boeing 737-200 crashes in the Sahara. (3 of 10) 7+

Rauray, Normandy, 1944: British commander John Semken's Sherman faces a German Tiger just 110 metres away. Against all odds, he triumphs, revealing why the Allies were winning. 7+

The Mississippi River: From a steamboat in a cornfield to the true story behind Hurricane Katrina's floods, discover how the Mississippi river shaped America. (S4, ep 10) 7+

Rivals on the Rocks: Bjoern joins forces with a rival company to rescue a truck that crashed into a cliff face, and Thord takes on a flipped tractor. (S6, ep 2)

Asbestos was a product that seemed too good to be true - because it was. Meanwhile, in New York, two buildings explode sending debris flying through the streets. (S1, ep 7) 7+

Ditch the Plane: In 2005 a passenger jet crashed into the Mediterranean Sea. Follow the consequent criminal investigation which resulted in 9 men being charged with negligence. 7+

World War Two left a great number of ships and submarines hidden beneath the waves. If the oceans were drained, what secrets would each vessel reveal? 7+

Dr Robert Ballard dives into Turkish waters to discover the ships and submarines wrecked during the bungling of the WWII Gallipoli campaign and the heroic stories of their crews. 7+

Here We Go Again: On a remote island, Matty makes a move with a home that is far from new and Billy races to replace his ailing roof before the Canadian winter arrives. (S2, ep 1)

Fatal Focus: Experts make an astonishing find as they investigate the fate of Garuda Indonesia Flight 200, which crashed in 2007 killing 21 of the 140 people on board. 7+