World's Toughest Fixes

Suit up and head into the radiation zone to replace a steam turbine in a nuclear power plant.

Join a team of Boeing engineers and mechanics as they attempt to fix a damaged Boeing 767 jet.

Join an elite corps of engineers who dangle from a helicopter and work with live power lines.

Sean Riley works to fix a faulty TV antenna nearly half a mile in the air.

Sean Riley races the clock to help add a more than 200-ton engine in a luxury cruise liner.

Witness a risky fix on the Trans-Alaska Pipeline--one of the world's longest crude oil pipelines.

Sean Riley joins a major effort to demolish a bridge and install a new throughway in just four days.

Sean Riley heads to the Big Easy to help clear out a massive barge that's become stuck onshore.

Sean Riley helps swap out a 38-ton engine on one of the largest ships in the Gulf of Mexico.

Watch a team of engineers as they move and clean a 27-foot, 23-ton, $15 million telescope mirror.