 Martin creates a replicating machine, the duplicates from which only having a limited lifespan. Tim accidentally leaves the machine on, the machine duplicating Mrs. Brown just prior to her date with Det. Brennan. Problems arise when both Mrs. Brown s are waiting for their date, and ultimately Det. Brennan takes out the duplicate. Martin and Tim are not only concerned about Mrs. Brown, but also possible exposure of Martin s identity by Det. Brennan. Martin and Tim decide the best course is to bring the real Mrs. Brown to the restaurant and switch her with the duplicate Mrs. Brown. Two Mrs. Brown s running around the same place causes a lot of confusion and near misses, and of course the still possible disappearance of the duplicate. Matters get worse before they get better when a second Det. Brennan is produced.