An overnight trip to Melbourne turns stormy for Maggie and Chris when they stumble into an armed holdup at a service station. Prison escapees, the McKenzie brothers, are on the run when they confront Chris paying for petrol with Maggie's purse. Maggie returns from the bathroom and manages to raise the alarm but receives a bashing for her trouble. Tyrone starts to squeeze the trigger as the Heelers arrive, raised by the alarm. Maggie is overwhelmed with guilt and blames herself for the incident as she watches Chris breakdown, unable to cope. Maggie attempts to overcome her own trauma by throwing herself into the investigation. Under the watchful eye of Tom and PJ, she struggles to maintain her facade and stubbornly refuses to take time off in spite of a bad head injury. The only person privy to Maggie's distress is her father Pat who arrives as soon as he hears the news. Pat loves his daughter above all else but offers more cause for concern when Maggie realises he has a drinking pr