Michael Caton stars as Darryl Kerrigan, a contented, mildly eccentric family man with an easy laugh and a quick compliment for his wife's cooking. Darryl, his wife, and his four children live in domestic bliss in a ramshackle yet proud domicile neighboring the airport. But that serenity is threatened when the government issues a compulsory acquisition order, which means the Kerrigans must vacate their home to make way for an airport expansion project. And even though he makes a hobby of buying useless junk as long as he gets it for bargain price, no amount of compensation money will convince Darryl to relinquish his "castle," which stores the family's collective memories and symbolizes their unique character. Darryl organizes the other affected neighbors, hires a bumbling attorney/family friend, and pursues his battle in court. However, he soon discovers he needs more than gumption and spitfire earnestness to support a case in front of the magistrates of Australia's high courts.