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.

The chase teams are on the front lines during an epic tornado outbreak.

The teams follow a storm headed toward downtown St. Louis.

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.

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.

Jeremy reveals how he reeled in his biggest catches.