Retired British nurse Joan teams up with retired Australian detective Darby in Australia as she looks into her dead husband's movements. Together they look into a suspicious death among a group of old friends.

Darby and Joan take a detour from Joan's quest for answers to help Darby's friend and investigate a theft at his banana farm.

Overwhelmed by new details about her late husband's past, Joan desperately needs space from Jack but finds herself alone and in danger when thieves target her motor home.

Joan's first Australian Christmas is put on hold after a scuba dive goes horribly wrong, and Joan and Jack discover the drowning was really a case of sabotage.

Sparks fly when Jack and Joan have to share a hotel room in a small town pub on New Year's Eve. When a real blaze breaks out, the two try to find out who set the fire.

Jack must face his past mistakes when he's asked to help a young woman who is a professional athlete navigate a sports-doping accusation.

Jack and Joan's search for a missing boy is complicated by the sudden arrival of Joan's daughter Rebecca.

The return of a familiar figure from her travels enables Joan to piece together the truth about her husband, while an ominous threat from Jack's policing days emerges.