A boy befriends a couple that recently lost its young son. A trainee schemes to steal Julie's job. A bickering married couple takes the cruise and stays in separate cabins...next door to each other.

A crotchety old man and a teenage runaway form an unlikely friendship. Julie grows frustrated when an old friend of her brother's repeatedly rejects her advances without explanation. A pair of incompetent painters continually screws up the re-painting of Capt. Stubing's cabin.

(Part 1) The Love Boat sets sail with two famous Hollywood stars, married couple Roz Rogers and Bill Klieg who need to find a balance between their professional and personal lives. An inept team of thieves board the ship and try numerous tactics to steal the Star of Kashmir, an expensive jewel brought aboard the ship by Ms. Rogers. Two childhood friends from a school for the blind meet up on the ship - only one of them isn't blind anymore. But that's not the only secret he is keeping from his friend. A philandering husband looks like he will be found out when he boards the ship with both his wife and his mistress.

(Part 2) The Love Boat sets sail with two famous Hollywood stars, married couple Roz Rogers and Bill Klieg who need to find a balance between their professional and personal lives. An inept team of thieves board the ship and try numerous tactics to steal the Star of Kashmir, an expensive jewel brought aboard the ship by Ms. Rogers. Two childhood friends from a school for the blind meet up on the ship - only one of them isn't blind anymore. But that's not the only secret he is keeping from his friend. A philandering husband looks like he will be found out when he boards the ship with both his wife and his mistress.

Stubing's nephew comes on board to train to be a seaman but doesn't do a good job at anything he does. A man who just stole a million dollars meets a woman who upon learning of what he has done reveals herself to be a cop who plans to turn him in. Two sisters compete for the affections of the same man.

A reformed prostitute causes trouble between a one-time "John" and his wife; Captain Stubing re-encounters an old flame; a fun-loving older couple help bring two lovers back together

A young female passenger encourages Gopher to be his own person and stand up for himself to Captain Stubing. However, neither were expecting the consequences of their actions. A cheating husband is caught when his neighbors from home also board the cruise. However, being holed up in a cabin with his mistress isn't all that he hoped it would be. A businessman uses all his wiles to convince a grieving widow to sell her husband's business to a Japanese conglomerate. But he soon comes to realize that this may not be the best idea.

A beauty can't choose between Captain Stubing and Doc; a man and his wife return to the ship with an orphaned boy; a hospital executive falls for a seemingly successful businessman.

Identical twin sisters decide to swap fiances; a separated ventriloquist team use their dummies to rebuild their relationship; a handsome widower proposes to Julie, who has fallen in love with him and his teenage children.

Gopher quits his job to manage a new hotel; a wealthy eccentric widow books a five-year passage and begins meddling in the crew members' lives; a magician tries to avoid his assistant by sending his brother to perform in his place.

The crew is in Australia to work on one of the cruise line's ships based there. And a wealthy man named Farnsworth (Lloyd Bridges) has decided to invite his whole family for a reunion, but in actuality he wants to see who, among them he should keep in his will.

After having spent time with his family, William Farnsworth (Lloyd Bridges) has finally decided who will be kept in his will.

On this Thanksgiving cruise, a father and his adopted son try to evade the boys biological father by escaping to Mexico; an older couple plan to travel with their daughter and her fiance who, unknown to them, is crippled; the smooth operation of the ship suffers as one by one the entire crew, after trading a bevy of insults, ends up not speaking with one another.