Tuesday, April 21 at 9 pm. Sand Wars is a surprising investigation into one of earth's most consumed natural resources: something most would consider inexhaustible. Yet, due to the high demand for sand, the planet's reserves are threatened. Three-quarters of the world's beaches are in decline and are likely to disappear thanks to erosion as well as a new threat: sand smuggling. Yes, the Sand Wars have begun.

Thursday, April 2 at 9 pm. Frontline investigates the political and military miscalculations and mistakes behind the brutal rise of ISIS. A year ago, few people had heard of the Islamic State of Iraq and Syria (ISIS)—the brutal jihadist group that President Obama calls a "network of death." How did ISIS become a major force so quickly? And what does it mean for the U.S. to be back in Iraq, fighting a new war on terror, less than three years after American troops pulled out of the country? On October 28, Frontline presents The Rise of ISIS — a major, in-depth investigation of the brutal terrorist group’s ascent, from veteran producer and journalist Martin Smith.

Wednesday, April 1 at 8 pm. Dawning in the dark aftermath of World War II, the fertile mid-century decades of Italian cinema delighted international  movie audiences with an eclectic mix of movie classcs from groundbreaking directors, including Frederico Fellini, Franco Zeffirelli, Sergio Leone, and others. And a major component of Italian cinema's enduring popularity continues to be the lush sweeping film scores by composers like Nino Rota and Ennio Morricone. Featuring Josh Groban, Renee Fleming and Joshua Bell, Great Performances partners with the New York Philharmonic and music director Alan Gilbert for a romantic concert of audience favorites with music from 8 1/2, Amarcord, Once Upon a Time in the West, Cinema Paradiso, Life Is Beautiful, Il Postino, and more.

Tuesday, February 3 at 9 pm. What should medical professionals do when they can no longer save their patients’ lives? That question lies at the heart of What Love Is: The Duke Pathfinders 50, a new film by filmmaker Ted Bogosian. The film profiles a group of 50 women from North Carolina with incurable breast cancer who heroically endure an experimental medical protocol to prove that there is a better way of life—and death—for cancer patients and their families everywhere. Narrated by NPR's Scott Simon.