A six-part radio series following the adventures of three Sydney children who meet an alien from the planet Soshuniss. (For a detailed, episode-by-episode synopsis, see Notes.)
The Stranger was produced in Australia as a television series (Australia's first locally produced science-fiction television program and one of the earliest Australian television programs to be sold overseas) in 1964, and series one of the ABC's television version followed the same basic plot as this radio series. See note below for more details on the relationship between the two.