they discover the lava has set the jungle alight in the direction of MR4. Brown, determined that the planet must not be ruined from what they've seen, decides to set the rocket to overload. However, Henderson turns the tables on him, just in time to see a Russian rocket land nearby. The pilot, Colonel Korolyov, explains they have extra fuel for MR4, in exchange for Wilson's secret mission - an experiment in stellar telecommunications. Preparing to leave, Brown announces he is remaining behind since Kiki has lost her parents and aware of the responsibilities of hijacking MR4 in the first place, and that to him Venus is an unspoiled paradise. MR4 takes off and is given fuel for the return journey in space. Finally after months away from home, the rescue party finally return to Buchan Island. Full cast Target Luna The director for Target Luna was Adrian Brown. David Markham as Professor Norman Wedgwood John Cairney as Ian Murray Frank Finlay as Conway Henderson Michael Craze as Geoffrey Wedgwood Sylvia Davies as Valerie Wedgwood Michael Hammond as Jimmy Wedgwood William Ingram as Flt Lt Williams Deborah Stanford as Jean Cary Robert Stuart as Dr Stevens Phyllis Kenny as Pat Maxwell Michael Verney as Mr Field Annette Kerr as Mrs Wedgwood Mel Oxley as the Newscaster Pathfinders in Space With a change of director, Guy Verney, all the returning roles in Pathfinders in Space were recast. Another key addition was that Jimmy's pet hamster, Hamlet, was also made into a guinea pig so it would be noticeable on screen. Despite the mass recast, many references were alluded of the previous serial, making this serial and the follow-ups canonical. Peter Williams as Professor Norman Wedgwood Harold Goldblatt as Dr O'Connell Gerald Flood as Conway Henderson Stewart Guidotti as Geoffrey Wedgwood Gillian Ferguson as Valerie Wedgwood Richard Dean as Jimmy Wedgwood Pamela Barney as Professor Mary Meadows Irene Sutcliffe as Jean Cary Hugh Evans as Ian Murray Astor Sklair as John Field Michael Guest as Michael Kennedy Pathfinders to Mars As with the previous serial, Guy Verney remained as director. The characters of Valarie and Jimmy Wedewood were dropped from the sequel. Professor Wedgwood was retired in the first chapter leaving Conway Henderson as the lead character and Ian Murray as Buchan Island base controller. Margret Henderson, Conway's niece, was introduced, and Harcourt Brown - a scientific writer and extraterrestrial theorist. Gerald