In 1972 Mi’kmaq Annie Mae Pictou Aquash answers a call by the American Indian Movement (AIM) to go to Washington to force the government to honor its treaty obligations with Indigenous people. Tensions rise, and the activists make a disturbing discovery.
Annie Mae risks her life to join a dangerous occupation in South Dakota. The Movement is embraced by Hollywood, the government secretly infiltrates AIM at the highest levels, and Annie Mae makes a dangerous decision in her personal life.
A clash between the FBI and AIM proves deadly. Annie Mae makes a secret pact with a close friend before going on the run with a group of fugitives, and then disappears. A body is discovered a short while later in the Badlands.