Platoon morale is threatened when an enlisted man (Bill Bixby) uses his friendship with Rice to gain favors.
Rice goes to the aid of a young woman (Kathryn Hays) when he hears her scream in a dark alley, but then finds himself facing serious charges.
Rice goes undercover as a private to investigate charges that Sgt. Karl Kasten (Rip Torn) is brutal in his training of new recruits.
Rice is mistakenly assigned as an aide to General Stone (Neville Brand) just as the general is ordered to Washington to defend his policies at a Senate hearing.
2LT William T. Rice reports for his first assignment, and is forced to choose between winning the confidence of his new platoon by overlooking a fight or revealing the truth to MCAPT Raymond Rambridge.
Rice is assigned to an air base for training and comes to the realization that he has a fear of flying.
Rice offers sympathy to the lonely wife of a fellow officer (Ina Balin), but soon finds himself the subject of malicious gossip.
A gruff and tactless guerrilla warfare instructor (Paul Burke) makes impossible demands on his trainees.
Rice tries to protect a fellow officer's girlfriend from the romantic attentions of a Navy officer.
Rice trains a group of Vietnamese combat officers and finds one of them is a beautiful woman.
Rice is assigned to defend a fellow Marine officer (Andrew Prine) who is accused in a hit-and-run accident and is in danger of being court-martialed.
Rice falls in love with a business executive's daughter (Sharon Farrell) who gives him an ultimatum of either leaving the Marine Corps or breaking off the relationship.
Rice loses control of his new platoon when he relaxes discipline to win friends.
Rambridge conducts a double courtship in an effort to get married to a stewardess (Madlyn Rhue) as quickly as possible in order to adopt a Korean orphan.
A famous author (Eddie Albert) decides to prove the contemporary Marine Corps is far less effective that it was during World War II.
Returning to his hometown while escorting a dead soldier, Rice is blamed for the death of a Marine during maneuvers by the parents of the deceased man, and connects with the beautiful sister (Sherry Jackson) of a friend. Strother Martin plays a taxi driver.
A party girl (Patricia Crowley) asks Rice to help her win back the affections of her ex-husband, Captain Rambridge.
Rice's career in the Marine Corps is threatened when he is paralyzed in an automobile accident, but he finds love during his rehabilitation with a woman (Joanna Moore) dying of a brain tumor.
Rice makes an effort to warn Sgt. Horace Capp (James Gregory) that the woman he plans to marry has both a notorious reputation and a police record.
Rice meets Lt. Joe Worth, an old adversary just when he is suddenly given command of important maneuvers due to Rambridge's appendicitis.
Rice tries to play peacemaker when he has to resolve a racial dispute between two young members (Dennis Hopper and Don Marshall) of his platoon. Nichelle Nichols plays the black soldier's fiancee. NOTE: The network never compensated MGM Television for this installment, forcing the company to bear the entire burden of its costs.
Rice is assigned as a technical adviser with a film crew making a movie about a Marine lieutenant in World War II. Leonard Nimoy plays a Hollywood producer and actor. Majel Barrett plays the wife of the World War II Marine.
A Marine (Ricardo Montalbán) returns from overseas and learns that his wife was killed while riding with another man, then takes advantage of Rice's sympathies.
A newspaper reporter (Robert Duvall) writing an expose of Marine training methods holds Rice responsible for the accidental death of a Marine.
Rice loses his girlfriend to a Naval Academy football All-American (Chad Everett), who also happens to be the nephew of the colonel.
Rice is shocked when a conniving Hollywood actress (Leslie Parrish) announces that she is going to marry him.
Rice recommends Sgt. John Delwyn (Walter Koenig) for officer's school, but then discovers that the man's mother is a leading member of the American Communist party.
Rice is assigned to run a surreptitious check on carelessness in security measures that has developed on a top-secret scientific project called "The War Called Peace."
Rice is assigned to deliver top-secret military information to combat troops in Vietnam, but when his plane is shot down, he and a Vietnamese aide are forced to fight their way back.
The 1964 feature film version of the series’ final episode.
