The Discovery Channel HD (Pacific)

Teams of expert storm chasers and certified weather spotters risk it all to venture into America's Tornado Alley; they self-shoot their encounters with nature at its most extreme, warn people in harm's way and help save lives when disaster strikes.

Six teams of chasers pursue a violent tornado outbreak in North Dakota; but as day turns to night, the storm unleashes the first EF5 tornado in over a decade; as the mile-wide monster levels homes and farms, chasers race to rescue people and pets.

When prime hunting grounds are unlocked, several teams take down warthogs. In a multi-stage challenge, competitors pick seeds out of rhino dung and build complex traps. Texas surges ahead, and Jeff calls out Ky. A legend is sent to the first elimination.

Teams of expert storm chasers and certified weather spotters risk it all to venture into America's Tornado Alley; they self-shoot their encounters with nature at its most extreme, warn people in harm's way and help save lives when disaster strikes.

Six teams of chasers pursue a violent tornado outbreak in North Dakota; but as day turns to night, the storm unleashes the first EF5 tornado in over a decade; as the mile-wide monster levels homes and farms, chasers race to rescue people and pets.

Russell searches a rugged hillside full of caves in Northern California's forests; Bryce speaks with a witness who hears frightening grunts; Mireya and Tobe Johnson expand their search area to determine if Bigfoot is mimicking animal sounds.

Tony guns for over 1,000 ounces in one week. Parker buys a new toy to open even more ground. Rick's crew burns through pay following a hot streak.

Game Wardens Mallory Mitchell and Jeremy Lindsey intervene when an overloaded boat and unruly jet skiers put lives at risk; Randolph McGee investigates reports of a wild hog being tortured; gathering a gator.

Poached birds are discovered on an abandoned boat, changing a missing person's search into a hunt for a poacher; Wardens Mike Boone and Lauren Iles rescue a tangled 12-foot gator; multiple boats are inspected on Lake Limestone.

Retired game warden Benny Richards returns with a friendly challenge for game warden Randolph McGee; a gunshot leads to dubious activity on a night stakeout; wardens spring into action to save a wakeboarder who has a life-threatening injury.

A routine patrol turns intense when Game Wardens Kyle Allison and Dustin Delgado discover an angler is wanted for serious crimes, then rush to the scene of a plane crash.

Game Warden Kegan Gould crosses paths with a rock collector and uncovers a devastating secret; a teen is caught on camera destroying protected bird nests, and an unruly crowd threatens public safety on Lake Sam Rayburn.

Over-capacity and on the brink, Louisiana's Washington Parish Jail is spiraling into chaos; the new sheriff struggles to bring stability and control while facing the mistakes of the past.

Virginia Beach is a party town with a vibrant nightlife, making its Correctional Center one of the busiest city jails in the state. Here, some inmates arrive to go on vacation, then leave on probation -- and return on a violation.

In rural Leake County, Mississippi, a small jail battles a big meth problem; with repeat offenders entering the jail daily, local law enforcement works to break the cycle.

Inside one of Nevada's busiest jails, deputies battle a non-stop surge of arrests driven by Reno's constant crime and a major trafficking corridor; with gangs entrenched inside, keeping rival groups apart becomes a daily fight for control.

In Bristol County Jail, half of the cells don't lock. As changing demographics bring in more violent, gang-affiliated criminals, staff must manage a higher-risk population without the facility slipping into chaos.

A random inspection of travelers leads to the takedown of a cartel stash house; a young woman coming from northern Mexico unwittingly brings across an illicit load; a man is detained for an outstanding warrant he didn't know he had.

As a man attempts to cross the border, he is flagged as having an outstanding manslaughter warrant; officers discover a secret stash of cocaine hidden inside a tractor-trailer; a woman caught with prescription pills is suspected of drug dealing.

After a K9 alerts to a vehicle, officers have trouble finding anything, but eventually a secret compartment reveals its contents; officers question a man who claims he's driving his friend's truck across country because his buddy needed to eat dinner.

A retiring officer makes a significant bust before hanging up his hat; a bus arrives with more than just passengers in tow; a mother wanted on a nine-year-old warrant for theft is apprehended; a car unexpectedly explodes in the middle of a bridge.

While some officers wear a badge, others wear a leash. Over a thousand highly-trained K9s are on the scent, and if something's hidden, they'll find it -- because at the border, man's best friend is a smuggler's worst nightmare.

In California, an argument in a bar leads to a hostage situation; in New Mexico, a shoplifter fires upon an officer before going on the run; in Wisconsin, a suspect disappears into the frozen wilderness after flipping his car.