Watch brave technicians perform a high-wire act to keep a popular tourist tramway running high above the California desert. Deep in the Montreal Metro, skilled workers race to replace a corroded section of rail in time for the morning commute.

Follow engineers in a fight to keep seawater safely behind the Netherlands’ storm-surge barriers. Plunge into murky waters near Montreal, where commercial divers put their lives at risk as they attempt to stop flood waters from rising.

Suit up with Scottish maintenance crews to battle moisture at the Falkirk Wheel, the world’s only rotating boat lift. Then, come along for the ride as technicians in Blackpool, England, fix broken tracks on one of the planet’s oldest roller coasters.

Meet the engineers struggling to solve an issue with a faulty power generator at a hydro station in Niagara Falls. Then, climb 45 storeys above the Las Vegas strip in extreme desert conditions with courageous lighting technicians.

Go deep inside a massive water tower in Oregon, where divers risk fatal nitrogen poisoning to decontaminate drinking water. Brave dizzying heights and fierce winds with technicians in Atlantic Canada as they install an essential communications dish.

Battle extreme conditions with technicians on opposite sides of Canada. Watch a team of specialists in Alberta grapple with massive wind turbines. Then, technicians on Prince Edward Island work to keep the country’s longest bridge open to travelers.