FRONTLINE investigates the miscalculations and mistakes behind the brutal rise of ISIS. Correspondent Martin Smith, who made "Truth, War & Consequences," "Beyond Baghdad," "Private Warriors" and "Gangs of Iraq," reports from Iraq on how the country began coming undone after the American withdrawal and what it means for the U.S. to be fighting there again.

Examine the violent battle between a ranching family in the West and the federal government. See how a fight over land became deadly, invigorated a wider right-wing anti-government movement and continues to challenge prosecutors and law enforcement. 西方农场家庭和联邦政府之间的暴力冲突。一场争夺土地的斗争是如何变得致命的，如何激发了更广泛的右翼反政府运动，并继续挑战检察官和执法部门。

Facing a heroin epidemic, America is experimenting with radical new approaches to the drug problem. Following four addicts in Seattle, the film examines U.S. drug policy and what happens when heroin is treated like a public health crisis, not a crime. 面对海洛因的流行，美国正在尝试解决毒品问题的新方法。在西雅图的四名瘾君子之后，这部电影审视了美国的毒品政策，以及当海洛因被当作公共健康危机而不是犯罪对待时会发生什么。

President Donald Trump's time in office has been marked by ongoing turmoil - including in his own Republican Party, where presidential tweetstorms, inflammatory rhetoric and high-profile dissent have fueled open conflict. In Trump's Takeover, FRONTLINE's acclaimed political team tells the inside story of a president who vowed to take down the Washington establishment, and who has fought an intense war for control of the GOP. Through interviews with longtime Republican legislators like Sen. Jeff Flake (R-Ariz.), House Freedom Caucus members including Rep. Jim Jordan (R-Ohio), current and former senior White House officials including Kellyanne Conway and Sean Spicer, authors, and journalists, Trump's Takeover examines how the president is remaking the GOP in his own image, counter-punching when criticized and publicly attacking those who defy him. The film traces the president's relationship with the GOP-led Congress, from his Twitter attacks on fellow Republicans after the failed Obamacare repeal-and-replace effort, to a split over what many in the party said was the president's inadequate response to deadly violence at a white supremacist rally in Charlottesville, to when Congress ultimately delivered a major legislative victory for Trump with the passage of tax reform. Gripping and revealing, Trump's Takeover is a window into the potential lasting impact of the Trump era on the Republican Party and the American political system as a whole. It's the story of President Trump's takeover of the Republican Party - from the perspective of Republican lawmakers and insiders themselves.

In the rural heartland of Syria's countryside, the bloody uprising against President Bashar Al Assad has taken a terrifying turn. In this highly charged documentary, award-winning filmmaker Olly Lambert lives on both sides of Syria's sectarian frontline, witnessing the devastating effect of a religious feud that, regardless of the outcome of the war, is shaping Syria's future. For generations, the many religions that live in Syria's Orontes River Valley have lived together peacefully. But as the conflict spirals into a contagious and sectarian blood feud, friends and neighbors of different faiths are taking up arms against each other, as Syrian society begins to collapse. And as each side seeks more and more revenge, shells, mortars, and air attacks only escalate the hatred and violence on both sides.