A documentary on the Northern Lights [Aurora Borealis]. Containing numerous personal accounts of the aurora, lengthy film footage of the phenomenon, and other footage as follows: Fort Churchill tundra research station in northern Canada; South Pole observation station, underground control centres; various historical stills of Northern Lights researchers; early time-lapse photographs of the aurora taken from space; construction of sounding rockets to study the aurora, control room; satellite construction and animations; preparation of cameras to record auroral light, images thus obtained; night launch of sounding rocket; various shots of polar research station, extra-sensitive real-time television system to record aurora; barium metal cloud launched towards aurora, analysis of results.