It’s going to be a major May for FRONTLINE.

Our lineup next month features four powerful investigations whose scope spans from the jungles of West Africa, to the corridors of power in Washington, to the food on your plate.

First, on May 5, we’ll premiere Outbreak — the vivid, inside story of why the worst Ebola outbreak on record wasn’t stopped before it was too late.

In The Trouble with Chicken on May 12, we’ll explore why regulators have failed to keep up with the increasing danger posed by salmonella.

Up next are two films from the teams behind United States of Secrets, our investigation of  National Security Agency surveillance activities that was just honored with a Peabody Award.

On May 19, we’ll premiere Secrets, Politics and Torture, the deep and comprehensive story of the fight over the CIA’s controversial “enhanced interrogation” methods.

Then, on May 26, in Obama at War, we’ll take you inside the administration’s struggle to deal with ISIS and end the deadly civil war in Syria.

Here’s a closer look at our May lineup:

May 5 | Outbreak

When the largest Ebola outbreak on record began to devastate West Africa, why did it take so long for the world to respond? Filmmaker and journalist Dan Edge spent four months in West Africa tracing Ebola’s path. With exclusive access to key global decision-makers and health responders, and gripping firsthand accounts from victims, Outbreak exposes tragic missteps in the response to the epidemic.

May 12 | The Trouble with Chicken

Every year, salmonella causes more hospitalizations and deaths than any other foodborne illness. This common bacteria has become one of the top food safety issues in the U.S. — and it’s often found on the meat most popular with Americans: chicken. Why isn’t the U.S. food safety system stopping the threat?

May 19 | Secrets, Politics and Torture

From veteran FRONTLINE filmmaker Michael Kirk comes the dramatic story of the fight over the CIA’s controversial interrogation methods, which have been widely criticized as torture. Based on recently declassified documents and interviews with key political leaders and CIA insiders, the film investigates what the agency did and whether it worked.

May 26 | Obama at War

Veteran FRONTLINE filmmaker Martin Smith goes inside the Obama administration’s struggle to deal with ISIS and end the deadly civil war in Syria. With interviews from key military and diplomatic leaders, Obama at War examines the hard choices facing the president as he tries to defeat the Islamic State without dragging America into a prolonged regional conflict.

Check your local PBS listings here.