Bud's underachieving brother is accused of making a mistake during a training exercise that nearly killed 15 Marines. But establishing his innocence proves to be a difficult task, thanks to the age-old tension between the Navy and the Marines. Adm. Chegwidden frets over a speech he must give when he is to be given an award. Mic Brumby returns unexpectantly to the States; Mac & everyone are stunned when he announces that he has resigned his Royal Australian Navy commission so that he could move to the USA and be by the "woman he loves."