Returning to Laos for the first time in over three decades, four military pilots confront their past in "The Ravens: Secret War in Laos." The veterans travel deep into the heart of the country looking to reunite with their former allies, the Hmong people of Laos.

Thirty-five years ago, as the American public struggled with ambivalent attitudes about the war in Vietnam; another covert war was taking place in neighbouring Laos. It was vicious, bloody, and - according to international law - illegal.

Known only by their radio call sign - 'Raven' - these pilots took their orders from the CIA. They were threatened with treason by the United States government if they ever talked about their actions in Laos. Almost thirty years later, the Ravens' are finally able to tell their story.

'The Ravens: Secret War in Laos' explores the history of the CIA war in Laos, why the war was conducted in secret, and how that secrecy still haunts the families and pilots who fought in Laos.

As the expedition unfolds, the four Raven pilots are forced to accept that the country they once risked their lives for is still Communist, and their war was never won.

Through exclusive video smuggled out of Laos, the Ravens discover that their former allies, the Hmong, are still fighting for their lives against the current Communist regime. The war in Laos ended in 1974, but for many Laotians, Hmong, and Americans in both countries the war is far from over.