"The Bringers of Wonder, Part One" is the seventeenth episode of the second series of Space: 1999 (and the forty-first overall episode of the programme). The screenplay was written by Terence Feely; the director was Tom Clegg. The final shooting script is dated 23 June 1976. Live-action filming took place Wednesday 25 August 1976 through Tuesday 28 September 1976 (with a two-day interruption on 21 and 22 September to film additional material for "The Beta Cloud"). A day of second-unit filming was completed on Tuesday 30 November 1976 This was the series' only two-part episode.