Mason is startled by the appearance of his 25 year old ex-girlfriend Rhiannon, and even more shocked when it seems she doesn't realise they're over, and assumes he's returning to Mt Isa soon. Mason's mortified when she introduces herself to Kate as his girlfriend, causing Kate to conclude that Mason's just been leading her on. Mason tries to explain but the damage is done.

It's a race against the clock as Mason persuades a reluctant Kate to drive him to the police station in order to stop Bailey confessing to his part in the Mt Isa robbery. Arriving just in time, Mason uses the cover story of having found the family cat to get Bailey out of there. Mason explains to Bailey that it was Rhiannon who wrote Matt the threatening letter because she was angry.