The trailer opens with archival-inflected narration describing the night of January 24th, 1978, when something bright fell from the sky near Great Slave Lake in Canada's Northwest Territories. Eyewitnesses describe jets of light and a crash, followed quickly by a large military presence in hazmat suits that offered no explanation to local residents. The fallen object is identified as Cosmos 954, a Soviet spy satellite that lost control and scattered radioactive material across Dene traditional lands. The host, Denizen Akeko, identifies this land as her home and her people as the Dene. In the years after the crash, community members noticed the caribou were not moving in their usual patterns, fish in the area showed mutations, and trappers developed rare diseases. Akeko notes that if the crash had occurred in a major Western city like London or New York, it would be a well-known historical event, but this story remains largely untold. She went to investigate and describes what she found in four frames: a Cold War thriller, a horror story involving fear for personal safety, a human tragedy, and a tale of resistance and resilience. Audio clips preview voices speaking under conditions of secrecy, expressing fear for family members, and urging the narrator not to give up. Akeko describes the crash's consequences as a bullet fired at her in 1978 that didn't hit her until April 2022. The trailer closes with the series title—Operation Morning Light—described as an eight-part series from Imperative Entertainment and Vespucci.