Season 4

Colombian drug traffickers are using a new secret weapon to smuggle cocaine north: drug submarines. Up to 100 feet long and nearly impossible to detect , they are capable of distributing several tons of coke in just one shipment. Dozens of subs are thought to be in operation between the coasts of Colombia and Mexico, and law enforcement estimates that another 70 will be built in the next year alone.

Like any bride-to-be Jennifer Chaffin worries about the flowers, the dress, the cake. But Chaffin also has fears that other brides do not share: whether the Feds will bust the wedding or the guests will start a knife fight. Chaffin is a hardcore biker and head of the Leather and Lace Motorcycle Club; and window of a murdered Warlock. Now she's marrying another outlaw biker, a member of the notorious Mongols. For the first time cameras enter an outlaw world where wives and girlfriends describe themselves as male 'property'; where men openly display their disregard and disrespect for them; and where weddings are blessed by an 80-strong motorcycle guard of honor.

It's a real-life "Big Love." Winston Blackmore is the family patriarch and leader of a fundamentalist Mormon polygamist community in Bountiful, British Columbia, that includes his 20-some wives and more than 100 children. Winston, like all who practice "the principle," believes that plural marriage and siring dozens of children will help guarantee his entrance into the highest of Heavens.

Street gangs armed with automatic weapons threaten the lives of teens in Detroit. NGC joins the elite police unit of 70 men and women tasked with turning the tide in the war against gangs. See the gang squad launch one of their largest investigations to date as they work to bring the shooters to justice. Getting the intel takes unconventional methods and a special kind of cop. With kids caught in the crossfire that blasts away in broad daylight, the stakes couldn't be higher.

The Gulf of Mexico is home to thousands of gas and oil platforms, in addition to some of the planet's most severe storms. So who do you call when a well or platform stops producing, or is toppled by a massive storm? Meet the Delta Divers, a team of highly skilled underwater adventurers who descend where few dare to go to - 300 feet below the water's surface. We'll join them on the dive barge "Southern Hercules" as they head out to repair an aging subsea oil well.

The divers aboard the "Southern Hercules" barge are 120 miles out to sea to disassemble and plug an aging subsea oil well. After detonating an explosive charge to cut the well pipes below the seafloor, they find that mysterious and potentially extremely dangerous bubbles are flowing from the well. Aboard the "Arapaho" heavy lift barge, the dive team faces a tight schedule and the constant threat of heavy weather as they take apart a massive platform by burning through steel underwater.

Capturing Saddam Hussein is just the beginning of a battle of wills. While Hussein is held prisoner, it is the mission of junior FBI Agent George Piro to get the notorious dictator to reveal the truth about his weapons of mass destruction and alleged ties to terrorism. In an in-depth interview, Piro details how he patiently formed a powerful bond with Hussein to build the criminal case for his prosecution. In the psychological chess match that lasted 166 days, George Piro is about to checkmate.

Since Sonny Barger took over the unofficial leadership of The Hells Angels, expansion has been the number one priority. Barger wants to unite all outlaw motorcycle gangs around the world under one banner: The Hells Angels. They are to be a global crime machine. In the 1990s Bargers global ambition leads to the Great Nordic Biker War: a vicious battle between The Hells Angels and the Bandidos for control of the Scandinavian drug trade. For several years these two gangs are locked in a fight to the death. Anti-tank missiles, grenades and rocket-launchers are some of the weapons that are used to rip up the streets of Copenhagen, Oslo and Helsinki. In their desperate search for a solution local authorities turn to Biker Expert JP Levesque of Quebec. But, will it be enough to stop the Bikers before they become all-powerful?

NGC takes viewers to the streets of South Central Los Angeles as it charts the rise of two of the most notorious gangs in America: the Bloods and the Crips. Follow along as an emerging cocaine trade fuels staggering levels of bloodshed and the streets of Los Angeles begin to resemble a war zone. Exclusive interviews include Bloods founder T Rodgers; original Crip Angelo "Barefoot Pookie" White; former LAPD chief Darryl Gates; and LAPD gang unit veteran Tony Moreno.

Meet three men who believe the Second Coming has already occurred and that they walk the Earth as the Messiah. Pastor Apollo Quiboloy, the founder of the Kingdom of Jesus Christ in the Philippines, claims to have built a worldwide following of six million. Sergei Torop, a former Russian traffic policeman, is believed by thousands to be the literal reincarnation of Jesus of Nazareth. Then, David Shayler, a former British MI5 agent and whistle-blower, claims to be the Jesus soul incarnated as man.

For those sworn to serve and protect, a shootout is a last resort against criminals bent on doing harm...but sometimes they can't be avoided. In Lethal Action, we'll go inside three high-profile shootouts to see how split second decisions and twists of fate determined who lived, and who died. From a bank heist in Hollywood, to a Taliban revolt in an Afghan fort, and raging drug war in Colombia -- meet the key players involved and find out how the dramatic events unfolded.

Established 42 years ago as a small town gas station just outside Walcott IOWA, 'IOWA 80' is now a giant of the US highways and the world's largest truck stop. Meet the people who live, work and visit IOWA 80. And visit the Annual Walcott Truckers Jamboree - the largest outdoor trucking event in the US. It offers everything from Pet Singing Contests to the Best Lit Truck at Night Competition. But at its centre is the Super Truck Beauty Contest. Hundreds of tonnes of gleaming metal thunders into the arena to compete for this coveted prize. It may look like a harmless bit of fun, but this title is taken very seriously. The Super Truckers are in it to win it, whatever the cost.

Inside Afghan Marine Base Tensions mount in the face of increased IED attacks. In spite of this everyday Marines carry out their missions. What they dont know is that this will be one of the deadliest months yet for US forces in the Afghan War. This is the war as seen through their eyes.

Join British agents from the Environmental Investigation Agency on a mission in China to protect the world's endangered tiger population.

Elite international ice sculptors race against time and the weather to create ice slides and ice sculptures of every description for the world's premiere winter wonderland festival in Harbin, China.