
An in-depth look at how things are repaired.

In the Mojave Desert, crews prepare Roc, the world's largest airplane, for a tandem flight with a 747 by repairing its wing, inspecting landing gear and engines and training chase pilots for the mission.

At Cirque du Soleil in Las Vegas, Mike embeds with the talented teams that maintain the amazing machines behind Cirque du Soleil's stage shows.

A ride through Eastern Europe aboard heavy-hauling trains shows the logistical and mechanical challenges of making a multimillion-dollar cargo delivery.

Mike Davidson goes to the biggest automated package sorting facility in the world, UPS Worldport in Louisville, Kentucky; two million packages go through here every day.