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The Heelers provide protection for the local vet, who orders inspections of all sheep properties after an outbreak of a highly infectious disease. Johne's disease threatens to kill every sheep in Mt. Thomas, and "Dr Death"—as the vet becomes known—is not popular.
Farmers demand a scapegoat as they succumb to the inspections. Somebody must be responsible for carrying this blight to the district, and the only new sheep in town belong to Senior Constable Robyn Taylor.
Robyn, with her husband Jeff, escaped the city to reap the good life in Mt. Thomas. Jeff decides a few sheep might supplement their income while they establish a vineyard. The local farmers have little respect for these dabblers and immediately suspect the Taylors are responsible for the Johne's outbreak. When one of Robyn's sheep dies, the town's worst fears are confirmed.
Ben and PJ investigate and find that Jeff has forged a deed of sale and that he bought the sheep via the Internet. How could he be so gullible? they wonder. Ben's new friendship with Jeff becomes strained as he begins to suspect that his mate left Melbourne for reasons other than fresh air and farm life.
Unsettled by the town's angry reaction against her, Robyn becomes defensive with PJ and Ben as they look into the matter. At first, she is certain that her husband was duped into the sale. Robyn twigs that something is amiss, however, when the bank begins to chase her for overdrawn funds. As Ben and PJ delve further, they discover that Jeff is in real strife. When Robyn learns of her husband's wayward dealings, she confronts him. Unable to face his wife's despair, Jeff disappears. Now Robyn must decide whether to be a wife and allow him to run, or be a copper and orchestrate his fall. Add a recap »