Discovery HD Mountain Builds. From a snowy North Pole abode to a Rocky Mountain retreat, some off-the-grid builders are willing to take risks to live high up in the mountains. S5, Ep7 2026-08-13 A Tiny Miracle. Dr Jeff performs surgery on Slash the dog who can't keep his food down and weighs 20-lbs less than he should. Plus, Winter the cat has a bloody wound on his side. S4, Ep14 2026-08-13 Help On The Street. Dr Jeff attends a shelter to help the pets of disadvantaged and homeless owners. And, at the clinic, Max the dog needs treatment for a growth on his head. S4, Ep15 2026-08-13 Find out how CO2 cartridges, pretzels, scissor lifts and skating rinks are produced, as more everyday items are put under the microscope. S8, Ep7 2026-08-13 Find out how pro hockey sticks, treadmills, baby shoes and handheld computers are made, as more everyday items are put under the microscope. S8, Ep8 2026-08-13 Find out how motorbikes, clay pipes, drumsticks and whistles are all made, as more everyday items are put under the microscope. S8, Ep9 2026-08-13 Find out how handcuffs, caulking and joint compound, and propane tanks are produced, as more everyday items are put under the microscope. S8, Ep10 2026-08-13 Kentucky Calamity. A Kentucky homestead built in a ghost town drowns in floods. The Raneys revive the original barn, devise a livestock escape pod and create a floating greenhouse. S5, Ep6 2026-08-14