In 1969, sisters Trang and Quỳnh, desperate to help their parents pay off debts, leave their rural village and become “bar girls” in Sài Gòn. The once-innocent Trang eventually gets swept up in an irresistible romance with a charming American helicopter pilot. Decades later, an American veteran, Dan, returns to Việt Nam with his wife, Linda, hoping to find a way to heal from his PTSD and reckon with secrets from his past. At the same time, Phong --- the son of a Black American soldier and a Vietnamese woman --- embarks on a search to find his parents and a way out of Việt Nam. Past and present converge as these characters come together to confront decisions made during a time of war --- decisions that force them to look deep within and find common ground across race, generation, culture and language.

THE MOUNTAINS SING tells an enveloping, multigenerational tale of the Trần family, set against the backdrop of the Vietnam War. Trần Diệu Lan, who was born in 1920, was forced to flee her family farm with her six children during the Land Reform as the Communist government rose in the North. Years later in Hà Nội, her young granddaughter, Hương, comes of age as her parents and uncles head off down the Hồ Chí Minh Trail to fight in a conflict that tore apart not just her beloved country, but her family as well.