Season 2015 - Episode Guide

Examine why, despite the national trauma over gun violence, Washington hasn't acted.

FRONTLINE traces Vladimir Putin's ascent from unemployed spy to modern-day czar and investigates the accusations of criminality and corruption that have surrounded his reign in Russia. The film is a FRONTLINE production with the Canadian Broadcasting Corporation.

Join Atul Gawande to explore the relationships between doctors and patients nearing the end of life.

Examine the spread of pathogens in chicken and why the food-safety system isn't stopping the threat.

FRONTLINE tells the vivid, inside story of how the 2014-2016 Ebola outbreak began, and why it wasn't stopped before it was too late. The primary focus is documenting how the transmission of Ebola spread so quickly, how the NGOs and Government organizations reacted and what eventually happened that allowed the virus to become contained. Filmmaker Dan Edge spent months on the ground in West Africa, tracing the outbreak's path through Guinea, Sierra Leone and Liberia and uncovering the hidden story of what happened before the world started paying attention. With exclusive access to key global decision-makers and health responders, and gripping firsthand accounts of victims from the jungles of Guinea to the slums of Monrovia, Liberia, Outbreak exposes tragic missteps in the response to the epidemic.

Examine the fight over the CIA's controversial interrogation methods, widely criticized as torture.

Go inside the Obama administration's struggle to deal with ISIS and the deadly civil war in Syria.

A joint investigation into the sexual abuse of immigrant women who clean the malls where you shop, the banks where you do business and the offices where you work.

Explore the struggles and choices facing transgender kids and their parents.

Hear gripping, first-hand accounts of women who escaped the brutal reign of ISIS.

Follow two filmmakers who set out to interview El Chapo Guzman, leader of a major drug cartel.

When filmmaker Ken Dornstein was 19 years old, his older brother David was one of 189 Americans killed in the bombing of Pan Am Flight 103 over Lockerbie, Scotland. Some 25 years later, only one suspect, a Libyan man, was ever convicted of the terror plot, which killed 270 people in total. He was sentenced to life in prison but later released. Who else was involved remains an open case. Who was really responsible for one of the worst terrorist attacks on Americans before 9/11? In this emotional and suspenseful three-part series, Dornstein embarks on a quest for answers -- diving deep into the case files, assembling a list of suspected plotters, and tracking them for almost five years across the Middle East and Europe.

Join Dornstein as he tracks evidence to Zurich and Libya, seeking the truth about the doomed flight.

Follow Dornstein as he uncovers new information about a suspected Lockerbie bomb-maker.

Why has it been so hard for Washington to fix our country's broken immigration system? In "Immigration Battle," a special two-hour feature film presentation from FRONTLINE and INDEPENDENT LENS, acclaimed independent filmmakers Shari Robertson and Michael Camerini take viewers behind closed doors in Washington's corridors of power to explore the political realities surrounding one of the country's most pressing and divisive issues. Gain insight into the hard-fought battles and secret negotiations over immigration reform on Capitol Hill. Examine President Obama's push for policy changes that could affect the fate of millions and define for decades what it means to be American.

The world's eyes have been fixed on the tens of thousands of refugees fleeing war-torn Syria for Europe. But what is life like for those left behind? Join correspondent Martin Smith in Syria as he reports from government-controlled areas while the war rages. With on-the-ground reporting and firsthand accounts from Syrians caught in the crisis, the film shines new light on the ongoing conflict.

Searching for the assassins behind a reign of terror that targeted Vietnamese-American journalists. FRONTLINE and ProPublica investigate a series of unsolved murders and attacks, uncovering a trail from American cities to jungles in Southeast Asia.

FRONTLINE, The New York Times and the Canadian Broadcasting Corporation examine the hidden dangers of vitamins and supplements, a multibillion-dollar industry with limited FDA oversight. Explore the risks of taking mega-doses of vitamins and examine how they are marketed and regulated

ISIS is on the rise in Afghanistan — and they say they're getting young kids to join the jihad. In a special report, FRONTLINE correspondent Najibullah Quraishi reveals on film the degree to which ISIS is gaining a foothold in the country, and how they're focusing their efforts on training a new generation of jihadists.

Inside a police counter-terrorism unit in Karachi, Pakistan that's dedicated to tracking down Taliban suspects. (Both films make up the 1-hour broadcast.)