"Heidi Landgraf - Operation Green Ice," explores the double life of Heidi Landgraf, a rookie DEA agent who in 1990 went undercover for two years as a money launderer in the agency's most successful sting operation targeting the Cali drug Cartel.

This episode of Undercover: Double Life follows Detective Matt Browning as he goes deep inside Arizona's most violent skinhead organization; helping to solve two high profile murders and putting the gang's leaders behind bars.

FBI undercover agent, Jack Garcia was so convincing in his role as Jack Falcone an Italian jewel thief, that mafia captain Greg DePalma sponsored him for "made" membership into the infamous Gambino family.

"Mark Whitacre: Operation Harvest King," tells the story of Mark Whitacre, a high-level executive with Archer Daniels Midland, a Fortune 500 company, who worked undercover for three years to expose the largest price-fixing conspiracy in U.S. history.

In February of 1995, DEA Agent Phil Muollo goes undercover with the Hell's Angels in Lynn, Massachusetts - a group known for their drug dealing and unpredictable violence.

After being arrested for his role in a drug deal, a former biker from Tennessee decides to make a deal with the FBI, and learns there is a price to pay when you take on a role as an undercover informant.

"Bill Randall: Operation Equine" explores the double life of Bill Randall, an FBI undercover agent in 1989 who posed as a gym owner on a quest to buy steroids in the agency's first covert effort targeting illegal steroid dealers.

Operation Royal Charm follows Special Agent Lou Calvarese as he goes undercover to infiltrate an international cigarette smuggling ring and eventually discovers links to illegal arms dealing and a high-grade counterfeiting scheme.

The clock is ticking and the stakes are high for undercover ATF agent, as he poses as a hitman to stop an angry inmate from arranging a murder-for-hire plot to kill his estranged wife.

Star Washington Redskins safety Sean Taylor is shot dead by an intruder in his Miami home. And when it comes to the rich and famous, it seems like everybody has a motive...

A sultry waitress gets fingered for brutally murdering her husband’s ex-wife. After her brazen prison escape turns the convicted killer into a national celebrity, questions about the case against her come to light.

San Diego police race to catch a killer with an unthinkable calling card.

All appears well in this upscale suburb of Detroit. But when a mother of two is bludgeoned to death and then stabbed repeatedly in her own garage, police and the community are shocked when the investigation leads close to home.

When an openly gay student is brutally murdered police must investigate every lead. And some will lead where they don’t wish to follow. Four young boys live in horrific conditions, will they live long enough to be free?

The wife of an internationally renowned Ivy League professor is murdered, and the killer is the last person anyone would have expected, and a Phoenix postman is accused of murder and is sentenced to death, but did he do it? Follow his story.

An Ohio woman is implicated in murder, was she the puppet master or an innocent bystander? Even the prosecutor has his doubts. When a young girl from Idaho is kidnapped only the gut instinct of two strangers can save her.