Jocelyn Bell Burnell spent her graduate years at Cambridge sifting through miles of chart-paper printouts from a radio telescope she helped build, looking for quasars. In 1967 she noticed a signal so regular that she and her supervisor half-joked about calling it LGM-1, for Little Green Men, before realizing they had found something new: a pulsar, the rapidly spinning remnant of a collapsed star. The film follows her back to the Cambridge site and has her describe, in her own words, the tedium of the data and the moment the pattern refused to be noise. It also sits with the controversy that followed, when the 1974 Nobel Prize for the discovery went to her supervisor Antony Hewish and the observatory's director, not to her. Archival photographs and interview footage trace her path from a Northern Irish schoolgirl steered away from science toward a career that reshaped astrophysics anyway. The episode treats her as a case study in how discoveries get made and how credit for them gets assigned, not always to the same person.