BaronMunchausenisinformedbyanastrologercousinofhisabouttheSelenites,anextraterrestrialracewhichisnativetotheEarth’sMoon("Selene"inGreek).TheSeleniteshavereportedlydiscoveredthesecrettoimmortality.TheBaronorganizesanexpeditiontotheMoon,hopingtoconvincethemtosharethesecretwithhim.HeandhiscompanionsarrivejustasanotheralienraceinvadestheMoon,andtheyarecaughtupinawar.
