Ann Burbrook was originally cast as Maggie Doyle and Lisa McCune as Roz Patterson but the two swapped roles to avoid being typecast in the future.

This allowed for the introduction of Adam Cooper to the group.At the start of the season, we meet young city constable, Maggie Doyle, who is arriving at her posting in the small country town of Mount Thomas.

Roz's absence opens up a place for ambitious and contentious young cop, Constable Adam Cooper, whose "breaking-in" at Mount Thomas is anything but smooth, particularly with Wayne who develops quite a disdain for him.

PJ has to deal with an old flame, Hilary Edmunds, when she arrives in town as part of the livestock squad, investigating farming issues in Mount Thomas.

Maggie also finds romance in Mount Thomas with a shifty detective, Sean Neale, and she has trust issues when she discovers that her beloved boyfriend may, in fact, be a criminal.

It is also revealed that Nick is carrying a huge secret: his wife and daughter, as well as half of his family, were killed in a car crash.