On Jupiter, winds reach over 500mph.
(01:30)Lions and hyenas face off over a kill and one of the clan makes a fatal mistake.
(01:59)Two of Africa’s deadliest predators square off in an ancient battle for prey at the waterhole.
(01:56)Brady Barr examines a hippo from very close.
(03:00)Brady is on a mission to capture a killer.
(03:12)Cesar comes to the aid of a professional dog groomer and a house that's full of big dogs.
(00:36)To orcas, almost every animal -- no matter how big -- is prey.
(03:40)In Nogales, Arizona, CBP officers prevent a wanted man from slipping across the border and uncover a shocking cartel smuggling.
(00:59)Agent Simon Keller's crew and horse patrols hike up the canyon in search of border crossers.
(02:59)At the port of entry, CBP agents hit upon a narcotics load stashed inside a silver pickup truck.
(03:00)CBP agents take off to patrol the Sonoran Desert with the help of a unmanned aircraft called The Predator.
(03:08)CBP officers are trained to identify impostors among millions of people that walk right up to America's front door.
(03:07)FOB agents work 24/7 in one of the most active and remote areas for drug traffic and illegal immigrants.
(02:39)The Blackhawk crew helps ground agents to track down illegal immigrants during the night.
(02:41)FOB agents come out in force to patrol one of the most active trails at night.
(02:56)Border Patrol Agent William Ortiz chases a pickup loaded with illegal immigrants.
(02:38)CBP officers dismantle the floorboards of a car in search of a hidden compartment full of marijuana.
(02:56)CBP officers and agents try to save a group of suspected illegal immigrants lost in the desert.
(02:54)CBP agents meet two possible young victims of human trafficking and sexual exploitation.
(02:29)Port of entry officers find several packages of money in a shiny red pickup truck heading into Mexico.
(02:45)