3rd Rock from the Sun season 3

Dick comes up with a plan to get his new wife to leave him - by turning himself into the worst possible husband anyone could have. This does not work, and despite all his attempts to keep his wife secret, Mary soon finds out and breaks up with him, furious.

Still bitter after their break-up, Dick and Mary begin a childish prank war against each other to try to prove, ironically, who is the biggest adult in the office.

Sally attends yoga classes with Mary, where she begins to take a liking to her instructor (Leigh McCloskey).

Mary is unable to tell her bitter, condescending parents (Elaine Stritch and George Grizzard) that another relationship has fallen through, and so invites Dick to meet her parents under the pretense that they are still to be married. Dick is quick to accompany her, thinking that if he can win her parents' hearts, he might win back Mary's.

When Dick discovers that he has put on a large amount of weight, Nina tells him that it is because he is sad about his breakup with Mary. Dick tries to slim by eating healthily and attending exercise classes, but nothing works and he ends up joining a weight loss group, where he runs into Mary.

Sally begins to grow attached to her new tomato plant and names it Jeremy, leading Don to fear the worst when he hears that Sally is spending much time with "him."

Tommy is worried that August is cheating on him and sends Harry to investigate.

Dick is called up for jury duty for the first time and struggles to deliver a guilty verdict on a clearly guilty man.

Sally, much to Officer Don's distress, falls for a cockney 'artist' called Seth, and makes herself over to look and sound similar to him.

Harry and Tommy volunteer themselves for Mary's class project - they must communicate without words for five days.

Dick has two theater tickets for Peter Connolly's 'King of the Jig' left over from when he and Mary were dating, but upon realizing that he does not have any friends to accompany him, he forges a friendship with Don and becomes jealous when Don wants to spend time with his other friends. Meanwhile, Sally's 'artist' boyfriend Seth voices his dislike of Connolly and Sally decides to lure him to Johnny Foam's.

Tommy forces Harry to go to night school to earn a diploma, so that he can have the things that his friends do.

Clip show in which the Solomons review how some of their past experiences on Earth have involved the Seven Deadly Sins.

Tommy decides that he needs to find a woman who is closer to his real age, and pursues Mary, kicking up a fierce rivalry between himself and Dick.

Sally finally gets a proper job, but her boss begins to sexually harass her, and she is fired.

Dick takes care of former felon Eddie in the hope of rehabilitating him, but soon tries to turn their relationship to his advantage.

Mary is fed up with her dog Pepper and enlists Sally's help in finding a new home for him.

After falling down the stairs while wheeling around in a wheelchair, Dick ends up in one, and leads a campaign to have a second ramp added to his building at Pendleton.

Harry is delighted when Vicki Dubcek returns, but less than happy when she announces her newly established celibacy.

Dick finally announces that he is ready to start dating again but finds that the women of Rutherford do not want him.

Harry runs into trouble when his dog-like pet 'Pickles' (Bill Irwin) from the Solomons' home planet somehow makes it to Rutherford - in human form. He stays with the Solomons, then leaves and ends up in bed with Mrs. Dubcek.

Dick meets a divorcée, Anita, in line at the cinema. After watching the film together, they have casual sex together in his car. He is delighted at having had a one-night stand, but soon runs into trouble when he brags about it at the university and discovers that she is the mother of one of his students, Bug.

Tommy is tired of being treated like a kid and decides to retire so that he can act the age he truly is (being the oldest of the group in alien form).

At work, Mary reveals to Dick that she had always dreamed of being a lounge singer, so he decides to try to help her realize this.

Don unwittingly ends up stealing one of Sally's panties, and makes a series of attempts to return it without being caught.

Dick decides to try to win back Mary's heart with a romantic champagne evening, and thinks it a lucky opportunity when the pair of them end up locked in the university library all weekend. Sally, Harry and Tommy, meanwhile, are determined to stop the pair getting back together and head to Mary's house to intervene, where they become distracted and end up running up her pay-per-view bill and hosting a Tupperware party that she had planned.

Mary's father arrives in town, announcing that he and her mother have separated again. Unfortunately for Mary, he soon begins dating Sally. After Sally ends it, he goes back to his wife.

Harry and Tommy stumble upon Pendleton's university radio station, where Harry takes the controls and becomes a shock jock.

After Mary and August tell the Solomons that they can be a little weird sometimes, they strive to become a completely average family, going as far as to move to a new, average, apartment, make themselves over with new, average clothes and behave in the most average way they can. Unfortunately for Dick, Mary is soon turned off, missing his old weirdness.

An eccentric new professor (John Cleese) has arrived at Pendleton University and Dick is quick to befriend him; he soon becomes annoyed when Dr. Neesam appears to be able to do everything better than he can, and becomes a rival for Mary's affections.

Don is concerned because he and Sally have never kissed, so Sally turns to romance novels for inspiration, unwittingly building herself up to the moment so much that, when it finally happens, it does not satisfy her expectations.

At work, Dick is worried because he is the only person in the university who gets charged for crackers in the cafeteria.

Dick becomes concerned that the Solomons are spending little time together and orders the family on a camping holiday, forbidding them to bring anyone else. Unfortunately, and much to the other Solomons' annoyance, he invites Mary to join them and, as a result, everybody becomes angry with him. Outcast, he ventures into the woods and ends up becoming leader of a group of young Beaver Scouts, while the other Solomons and Mary attempt to find him. Guest appearances by Miles Marsico, Meredith Baxter and Robert Gentry

Harry drives Nina to the dentist and behaves so sweetly toward her that he ends up stirring her emotions and sparking a romance.

At work, Mary has been awarded a place in a promotional video for Pendleton and a jealous Dick takes desperate measures to ensure that he also is granted a place in it. Unfortunately, neither Dick or Mary share the director's vision and end up ruining the video.

Officer Don gives Sally a key to his apartment, hoping that the pair can spend more quality time together; however, he regrets it when she begins to treat the place a little too much as if it is her own.

Dick prepares to celebrate his second anniversary of his first real date with Mary, and Vicki Dubcek returns to rekindle her romance with Harry. Sally, however, wants to lose her virginity to Don, but has trouble when Dick, angry that Mary did not know what the celebration was about, locks himself in his bedroom, as her bedroom is on the other side of his. There are more sinister things afoot, however, when Randy (Phil Hartman), a disgruntled ex-lover of Vicki's turns up and kidnaps Harry.

• 8 days after this episode aired, Phil Hartman was shot dead by his wife. For this reason, he is only mentioned in passing during the next episode.