Synopsis: A light aircraft carrying a large payroll disappears after a forced landing on an emergency airstrip in the bush. Boney and Alice McGorr make a startling discovery at a nearby convent, a 'silent order' where the nuns are not permitted to speak. Alice risks her life posing as a nun, while Boney searches the bush for two kangaroo shooters who prefer human game. Notes: Final episode with Kate Fitzpatrick as Const. Alice McGorr. Filmed in New South Wales. Not directly based on a novel.