The Discovery Channel HD (Pacific)

Eyewitnesses capture severe weather across the Dakotas as tornadoes tear through neighborhoods and farm structures; near Enderlin, North Dakota, a violent twister with estimated winds exceeding 200 mph becomes the first U.S. tornado rated EF5 in more than 12 years.

In May 2025, eyewitnesses capture shocking scenes of destruction as a mile-wide tornado tears through the city of St. Louis; when warning sirens fail, residents are caught off guard while visitors panic 630 feet above the ground inside the Gateway Arch.

As spring tornado season rolls into Father's Day weekend, a rogue storm in the Texas Panhandle ignites a monster outbreak, unleashing over 80 tornadoes across 14 states; witnesses scramble for safety as a deadly EF3 cuts power and silences tornado sirens.

In January 2026, a monstrous 2,000-mile winter storm unleashes chaos across 40 states. A 100-car pileup traps motorists in Michigan, a freight train smashes a stranded semi, and first responders race to save a driver sinking in a frozen pond.

Eyewitnesses capture severe weather across the Dakotas as tornadoes tear through neighborhoods and farm structures; near Enderlin, North Dakota, a violent twister with estimated winds exceeding 200 mph becomes the first U.S. tornado rated EF5 in more than 12 years.

Due to a windfall from a custom project, Joe plans to create the Boat Truck, an amphibious Jeep; with a buyer for the Defender falling through, Pop, Jerry Jr. and Frank are tasked with finding buyers for both the Defender and the Boat Truck.

As competition heats up on the King Crab grounds, Jake's next move puts him at odds with Capt. Sig. Wild Bill battles heavy seas and side effects; Sophia Bob Nielsen attempts to pop in a deckhand's dislocated hip to avoid a steam back to town.

When wildlife agents find an alligator with a fresh bullet wound to the head, nearby anglers are the prime suspects; an injured hunter must be evacuated by helicopter; agents use drones to track crabbers selling their catch across state lines.

When a child is thrown from a boat and badly injured, wildlife agents are first on the scene; a night hunter faces multiple felony charges when agents make a grave discovery, agents confront a jet ski rider who risks drowning and gets belligerent.

LDWF biologists on a conservation mission get hands-on with black bear cubs, facing a protective mama bear; hunters get caught using a banned method to hunt ducks; wildlife agents stake out after dark for a felon with an illegal gun.

Wildlife agents question a hunter with something to hide; a group of youths shooting ducks from a moving boat is caught in the act; frightened hunters accuse a landowner of serial harassment.

A new recruit hoping for her first drug seizure strikes it lucky; an unlikely smuggler is caught with nearly $50,000 in cash; officers find a fuel tank that's got more than gas inside it; a bus is searched after a K9 alerts to a strange smell.

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.

When a bus is stopped for a routine search, an X-ray reveals some contents may be under pressure; a U.S. family's pet parakeet is denied entry into Mexico and without special USDA approval, it may not be allowed back into America either.

Officers find a box of syringes filled with a mysterious black liquid; a computer programmer from South Korea raises suspicions when he says he's coming for business meetings, but it sounds like he's planning to work in the US illegally.

Intel arrives, sending officers searching for two suspected narcotics smugglers flying in from London; agriculture specialists get more than they bargained for when a passenger lands with some illegal and foul-smelling items.

After two unclaimed cargo packages are opened, experts are called in after officers suspect that they may contain stolen ancient artifacts; when a family heading to the Middle East is found carrying more than the allowed $10,000 limit, questions arise.

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.

Caddo Parish Correctional Center is struggling with a staffing shortage, the inmates outnumber the deputies by 180 to one; to ensure the safety of both inmates and staff alike, the Emergency Response Team springs into action.

At the crossroads of one of the West Coast's busiest narcotics corridors, Sheriff Patrick Withrow and his deputies confront violent offenders, rival gangs and the ongoing battle to stop contraband from entering California's San Joaquin County Jail.

In a city gripped by fentanyl and rising drug arrests, San Francisco's largest jail is on the front lines of addiction; it fights to give inmates a shot at recovery, rehabilitation and a path forward.

Each year, CBP officers inspect thousands of animals, including family pets and exotic wildlife -- because at the border, the threat may come from a different species. Some look innocent, while others carry hidden dangers.

At Tennessee's Dyer County Jail, overcrowding, contraband and violence strain an understaffed facility, where drugs have been smuggled in by officers and violence among inmates has turned deadly.