Sean Riley heads to New Orleans to help clear out a massive barge that's become stuck onshore, and get it over to a nearby salvage yard. With a fix that revolves around three hundred tons of shifting metal, Riley has to help put this barge back in the water... without getting crushed in the process.

Riley heads into the remote jungle to help a team of rocket scientists and engineers launch a new two-ton satellite with a price tag of more than $1 million into orbit.

Witness a high-stakes repair job as Sean Riley and a crew of 100 highly trained men and women shut down the Trans-Alaska oil pipeline—the only conduit to market for almost 15 percent of the US domestic oil production. This major fix calls for swapping out a 32-ton valve system, but the size of the job is the least of their problems. Crude oil is not just highly toxic—its explosive. Follow the crew as it races to complete the fix in just 36 hours.

Riley travels to Portsmouth, R.I., where residents are setting up a 115-ton wind turbine that will provide years of clean energy. The constant blowing wind will fuel the rubine, but how do you raise giant blades in the midst of these unpredictable winds?

Riley joins a crew lifting a 50 ton boiler 160 feet up a tower and suspending it above 24,000 mirrors - completing America's first large scale solar power tower.

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