The bumbling but well-meaning officer of the Greek Army, Corporal Thanasis Prasinadas, is madly in love with Froso: the lively live-in housemaid of his commander, Colonel Petros Pavlaras. When Pavlaras decides to marry his son George off to Rena, the niece of his late wife, Froso takes matters into her own hands and enlists the help of Thanasis to help them marry their beloved ones. Before long, the three couples end up in a luxurious mansion, the lair of a dangerous ring of spies. Can Thanasis save the day?