Off Limits

Don digs beneath LA's sunny image to unveil its dark and dirty secrets.

Don takes a wet ride to see how Seattle's hardy pioneers paved the way.

Don explores the hidden remains of San Francisco's rough-and-tumble past.

Bold engineering & deadly secrets hidden in Arizona's deserts are revealed.

Don scours the terrain to discover how people earned a living in Tennessee.

Don explores the marvels and lost worlds of a forgotten city - Buffalo.

Don uncovers the history of New York on the city's "other" islands.

Don explores a side of Boston on how it solves issues with bold ideas.

Don visits hidden corners where New York City is reinventing itself.

St Louis' secret world shows how wild ambition made it a powerhouse.

Don gets dirty in Pittsburgh's industrial wasteland & hi-tech wonders.

Don explores the Twin Cities' underworld, gangster hangouts and industries.

Don escapes from Alcatraz, tunnels under New York and pours a lot of gold.

Don tackles gators, flies a blimp, zip-lines underground and more.

Don fights fire in Florida, makes snow in California and more.

Don scales coasters in Ohio and blasts away a tunnel under New York.

Don glimpses into Denver's mint, drives a NASA rover and lights up Vegas.

Don races down an icy Utah slope and gets underneath the Denver airport.

Don digs for salt in Utah, crushes scrap metal, & flies atop a tramcar.