After adapting Maurice Gee classic Under the Mountain for TV, writer Ken Catran wrote his own tale of teen extraterrestrial contact. While holidaying with relatives in the country astronomy-mad Gretchen discovers that a farm weathervane has mysterious powers. In this second episode of the girl-power sci-fi series, the weathervane does strange things to cars and appliances; and Gretchen and local scallywag Ronny discover a secret in a tapu swamp threatened by development. Actors Zac Wallace and Roy Billing feature, and future weatherman Jim Hickey cameos.
Well ... you're quite a mystery, but I'm going to find out what you are. Because Gretchen Josephine Kierney never gives up.– Gretchen (Sarah Dunn) to the mysterious weather vane