Discovery HD

While Mark is on the road, the guys pick off a list of chores at home, including stacking the Hamlin cabin. Mark checks out an incredible timber-frame barn.

Mark and the team salvage every good log they can from an old double-pen barn in Pennsylvania so the logs can be used to build a guesthouse in upstate New York.

Tony tries to resurrect his infamous Dredge no.1. Parker brings in his last gold from Australia Creek and focuses the team on finishing the Money Pit.

Rick bets his season on firing up Monster Red. Tony's dredge suffers a major setback. Meanwhile, the McCaughans break out a crazy contraption.

Construction projects are stressful, especially if they are in the middle of nowhere. Incredible skill is needed to build on tricky terrain.

A father-son duo builds an off-grid home in Montana. The 720-square-foot home takes advantage of mountain winds by using a wind-turbine generator for power.

Dr. Jeff and the team head to Mexico to offer free veterinary care for poor families. Over one gruelling week they will treat hundreds of animals in need.

The Dog Who Won Jeff's Heart. A client brings in an unusual pet who is fast outgrowing his enclosure. And, Dr. Jeff treats a pet cat with multiple serious and mysterious injuries.

Find out how chains, cedar canoes, vinyl records and bagels are made, as more everyday items are put under the microscope.

Find out how windshields, English saddles, butter and electric guitars are made, as more everyday items are put under the microscope.

Find out how individual transporters, post clocks, drum heads and drums are made, as more everyday items are put under the microscope.

Find out how residential water heaters, air bags, jelly beans and ice resurfacers are made, as more everyday items are put under the microscope.

Marty faces his most daunting challenge ever in the rescue of a Tennessee homestead. He calls on past homesteaders and a home renovation team to help.

Ant hits week seven of his Alfa build and takes the team on a pilgrimage to see an original Alfa 158. He is starstruck and even squeezes into the beauty for a selfie.

Ant's engine for the Alfa 158 is still missing in action and he is losing patience. He's been working early mornings, late nights and weekends.

Ant tries to sweet-talk his way into taking the completed Alfa 158 to the US Grand Prix in Austin. But the car isn't done, and the crew must do the heavy lifting.

Ant's ambitious Alfa build is on the home stretch, but his new baby is due any day. And, he gets good news about his plan to unveil the car at the US Grand Prix.

Experts provoke orcas to strike, risking it all to reveal how killer whales hunt and take down great whites.

Prehistoric sharks rise from the dead as marine biologists investigate the superpredators that once ruled the seas.

A fairground on the city limits of Fairbanks is rumoured to be home to a dark spirit. Ghost hunters try to contact this powerful poltergeist.