Stargate SG-1

A distant alien civilisation is on the brink of extinction after an illness spreads among its population. The disease was unintentionally brought to their world by the team, triggering a rapid and widespread decline in the species' numbers across the planet.

"One False Step" is a programme presented as an episode within its series. Classified under the episode genre, the show follows the format of a self‑contained story that fits into the broader framework of the series. It is structured to deliver a concise narrative, focusing on a particular incident that unfolds over its runtime. The episode format allows the creators to concentrate on a single, impactful scenario. The central narrative centres on an alien civilisation that finds itself on the brink of extinction. This dire situation arises after a team unintentionally brings an illness to the alien world. The disease spreads rapidly, threatening the survival of the entire civilisation. The episode follows the unfolding consequences of this accidental contamination, highlighting how the team’s mistake precipitates a crisis that could wipe out an entire species. The story underscores the accidental nature of the team's actions and the severe ramifications that follow. It portrays the fragile balance between different worlds and how a single misstep can have catastrophic outcomes. By focusing on the looming extinction of the alien civilisation, the episode illustrates the weight of responsibility that comes with contact between species, and the urgent need to address the unintended spread of disease.