Opioid maker Insys Therapeutics bribed doctors to prescribe a drug that’s stronger than heroin. It’s been linked to hundreds of deaths. Speaking publicly for the first time since the criminal trial against Insys executives began, the company’s former VP of sales explains how he ran the scheme.

A Virginia physician, McBride has been friends with Mitt Romney for more than 40 years. The two met in 1966 while serving as missionaries in France, and he explains here how the 30-month mission for the Mormon Church forever changed his friend.

Arguably the most pivotal exchange of Mitt Romney’s first debate against Ted Kennedy in 1994 came on an issue that continues to dog him today: health care reform.

In 1986, Mitt Romney was two years into his tenure at Bain Capital and starting to feel the pressure. His partners had invested millions to help launch the firm, and while Bain had made a few modest deals, it had yet to hit its stride. That all changed when a former supermarket executive went to Romney with a pitch for an office supplies chain called Staples.

In “The Choice 2012,” acclaimed FRONTLINE producer Michael Kirk (“Money, Power and Wall Street,” “Top Secret America”) documents the places, people and decisive moments that made the men who are competing for the presidency. Watch on air and online beginning October 9 at 9 pm ET on PBS.

He met Obama at a New Year’s Eve party in San Francisco, while Obama was attending Occidental College, and the two men later became roommates in New York. “I saw a transformation in the Barry I had met in Occidental,” Siddiqi recalls about Obama’s New York years. “He got very serious and less lighthearted, and our conversations were more about serious things.”

Tagg Romney discusses what Mitt and Ann Romney are like as parents, as well as lessons his father learned running the Olympics, serving as a governor, and losing his bid for the White House in 2008.

A professor of economics at MIT, Gruber specializes in health care. He was involved in the development of Mitt Romney’s Massachusetts health care plan — aka “Romneycare” — as well as the Affordable Care Act, or “Obamacare.”

Barack Obama and Mitt Romney have crafted their campaign narratives, telling you who they are, what they’ve done, and how they wouldlead America. But there’s more to their stories.On October 9 acclaimed FRONTLINE producer Michael Kirk presents The Choice 2012, a two-hour documentary that journeys into the places, people and decisive moments that made the men who are competing for the presidency.

Eric Fehrnstrom has advised Romney as governor and through three campaigns: Romney’s successful run for Massachusetts governor, his unsuccessful bid for president in 2008, and his 2012 presidential campaign. Known as tough campaigner, Fehrnstrom sees Romney’s team as leaner, nimbler and more competitive in 2012.

Born Ann Davies, she met Mitt Romney in high school and the couple married in 1969, three months after Mitt returned from being a missionary in France. She discusses how she helped convince Mitt to take over the 2002 Olympics, as well as to seek the presidency in both 2008 and 2012.

As deputy national security adviser for strategic communications, Rhodes is one of Obama’s top foreign policy advisers and was involved in the discussions that led to his decision to send U.S. troops into Pakistan to pursue Osama bin Laden.

Obama took on a giant of the Chicago political scene — and lost. Badly. Watch a clip from one of his first debates.

In this preview from “The Choice 2012,” airing tonight, FRONTLINE explores how Mitt Romney and Barack Obama’s early public failures could have ended their political careers. Instead, both candidates went on to learn from their losses – lessons that would help them both pursue the presidency.

How mass protests on the Israel-Gaza border led to one of the deadliest days in a generation. One year later, a moment-by-moment investigation, drawing on exclusive interviews in Gaza and Israel and videos of the protests and bloodshed.

Inside the no-holds-barred war for control of the Supreme Court. From Brett Kavanaugh to Robert Bork, an investigation of how a 30-year-old grievance transformed the Court and turned confirmations into bitter, partisan conflicts.

Filmmaker Waad al-Kateab filmed her life in the rebel-held Syrian city of Aleppo over five years. She fell in love, got married and had a daughter all while filming the violence raging around her — and in particular, documenting the unique challenges the Syrian conflict imposed on women and children.

FRONTLINE interviewed El Paso Mayor Dee Margo about his meeting with President Trump, just days after a shooting left 22 dead in his city.

A two-year FRONTLINE investigation uncovers the roots and extent of a deadly Legionnaires’ disease outbreak during the Flint water crisis — and how officials failed to stop it.

Before Michigan switched Flint’s water supply in April 2014, a man who worked at the water treatment plant tried to sound the alarm. His sister reveals he said, “It’s not safe. We’re not ready… People are gonna die.”

Nationwide, 7,000 students drop out every school day, but new evidence suggests that the make-or-break moment for high school dropouts may actually occur in middle school. FRONTLINE examines one Bronx school’s unique approach.

Can America build a truly national Iraqi army and police force to staunch the violence? A hard, on-the-ground look at the multibillion dollar training effort that is a centerpiece of the U.S. exit strategy.

Following a deadly Legionnaires’ disease outbreak that coincided with the Flint water crisis, a team of scientists urged the state’s top health official, Nick Lyon, to step up surveillance for the disease or else more people could die. In FRONTLINE’s documentary “Flint’s Deadly Water,” they say his response was, “They’ll have to die of something.”

FRONTLINE goes inside a counter-terrorism unit in Karachi, Pakistan that’s dedicated to tracking down Taliban suspects.