3rd Rock From The Sun: Season 4

Harry has been kidnapped and the Solomons try to find him, a task that is complicated by the fact that Dick is literally losing his mind.

Mary is the new dean and Dick thinks this gives him power as well. Sally has lost her virginity.

When Sally realizes Don had other girlfriends before her, she considers them competition and wants to know who she's up against.

Starting as a promotional giveaway at Rusty's Burgers, Dick becomes addicted to collecting Fuzzy Buddies dolls at all cost. Tommy is forced by the basketball coach to show pep by dressing up as Hootie the mascot.

Sally tries to fix Nina up with Eric, a colleague of Don. Dick finds himself attracted to Jennifer, his new office mate.

Dick is fascinated by Jennifer, his new office mate, and suggests to Mary they should see other people. To his surprise, she agrees.

Dick wants to break up with Jennifer. Don has asked Sally to go bowling but Sally hasn't got a clue what bowling is.

Sally tries out for a nude photo shoot for an adult magazine at Pendelton State University over the objections of boyfriend Don. Harry tries out home nudism and believes clothing might be a scam. An enraged Dick tracks down a photographer who took nude pictures of Dr. Mary Albright twenty years ago but then has a change of heart. Tommy becomes enamored with a new lab partner.

Tommy organizes a new year party at the bar where Harry works while Dick feels he hasn't accomplished anything the past year.

After three years, the Big Giant Head has granted Sally's request to be a man and switches Sally and Dick's bodies.

Dick receives an invitation for a family reunion that was meant for someone else but the Solomons go anyway.

When they lie on their IRS form, the Solomons receive an audit notice and fear the IRS will discover they're aliens.

While Dick is in a feud with the Dubceks, Don asks Sally to marry him.

Dick convinces Mary there's a conspiracy against her at the university.

Sally moves out while Harry and Vicki are considering having a baby.

Dick and Mary both receive a chain letter. Mary throws hers away and a lot of bad luck befalls her.

Dick discovers computers and gets hooked.

Sally meets Italian-American Sammy Marchetti, who's also known as 'the Butcher'. Mary & Dick and Harry & Vicki go to a couple's retreat.

The Solomons hire a maid now that Sally has moved out. Tommy becomes editor-in-chief of the school paper.

Birthday boy Dick meets a woman, Charlotte, who's very interested in him.

Strudwick, a colleague of Dick, has written a physics book that everyone considers to be brilliant, which makes Dick very jealous.

Tommy, Harry and Sally had a near death experience and appreciate the world like never before. A jealous Dick wants to experience this too.

The Big Giant Head comes to Earth.

The Big Giant Head continues to behave ill-mannered, inappropriate and unadapted.