Reed takes his team on a dangerous nighttime chase.

The teams help with the recovery effort in Alabama and Mississippi.

Reed and his team take the day off, but it backfires.

A tornado outbreak threatens to wreak havoc in Reed's backyard.

Sean tries his team's patience, and Tim makes questionable decisions.

The chase teams have one last chance to achieve their goals for the season.

A wide-ranging journey visits mountains, jungles, plains and deserts.

A world of extreme storms and unpredictable blizzards, this land tests all those who set foot on it. From bunker building prairie dogs to the fastest land animals on the continent, the fight to survive shapes all who dare call this place home.

Bears, bighorn sheep and more fight for survival in mountains and forests.

An exploration of the continent's coasts reveals a migration of sharks.

The desert is more alive than you ever imagined. Human and animals alike endure at the mercy of the elements. From Death Valley to the deserts of Mexico, creatures battle for survival with astounding adaptations.

Two couples from two generations put their trivia chops to the test.

A Trekkie tries to win enough dough to give his bedroom a makeover.

Newlyweds charm our hosts as they take a ride in the Cash Lift.

The lift opens its doors for a set of twins ready to test their knowledge.

A mother-and-son duo takes on the Cash Lift in this season finale episode.