Expedition Venus

An unmanned probe returning from Venus crashes in the African desert; a Venusian spore on board thrives in its new environment; a grey mold quickly spreading and killing all it touches. An urgent manned mission to Venus is launched from Lunaville, the now permanent Moon base. Chris Godfrey, Morrey Kant, Serge Smyslov, Tony Hale and Pierre a scientist are sent to try and discover what limits the mould's growth in its natural environment. The plan is to collect samples from the Venusian atmosphere but in the end a forced landing is required...