ɪɾ ɪz nˈoʊɾəbəl fɔːɹ ˈæktɪŋ æz ɐ kɹˈɔsoʊvɚ stˈoːɹi, ɔːlbˈiːɪt ɐ slˈaɪt wˌʌn, tə blˈeɪkz sˈɛvən, wˌɪtʃ bˈaʊtʃɚ skɹˈɪptˈɛdɪɾᵻd, æz ðə sˈaɪkoʊstɹˌæɾɪdʒˌɪst kɑːɹnˈɛl hˌuː ɐpˈɪɹd ɪnðə sˈɪɹiz tˈuː ˈɛpɪsˌoʊd "wˈɛpən" ɪn nˈaɪntiːnhˈʌndɹɪd sˈɛvənti nˈaɪn plˈeɪz ɐ pɹˈɑːmɪnənt ɹˈoʊl.
It is notable for acting as a crossover story, albeit a slight one, to Blake's 7, which Boucher script-edited, as the Psychostrategist Carnell (who appeared in the series two episode "Weapon" in 1979) plays a prominent role.