Col's mother dies, leaving him as the sole remaining member of the Lane family. On returning from the funeral, Col receives a letter informing him he was adopted as a child. The woman who is claiming to be his real mother, is a politician with aspirations of one day becoming Australia's first female Prime Minister. Her problem ... she's seen as not being motherly enough. After discovering that it's all a scam, it's up to Frank to try and save the day.