Dick is totally astonished when The Big Giant Head turns out to be his father and he doesn't know what to do. Tommy's very angry with Sally when he finds out she dumped Alissa on his behalf. The tender relationship Harry and Janice have, won't last long if a jealous Vicky has anything to say about it.

The Big Giant Head returns along with his queen and he has a surprise for Dick. Meanwhile Queen Vicki tries to break up Harry's relationship with Janice. A misunderstanding between Tommy and Alissa leads to interference from Sally.

Dick finds out what sick days are and what one can use them for. Harry, Sally and Tommy listen to cellphone conversations on Don's scanner.

Dick becomes jealous over one of Mary's former students, then when he makes a discovery about the student, he thinks the student and some of his friends are from another world just like him. Meanwhile Sally, Harry and Tommy plan a heist.

Dick and Harry tumble down an air shaft, prompting a televised search and rescue led by an eccentric Scot. Angus 'The Hole' McDuff devises a plan to build a second hole in order to access the one Dick and Harry are stuck in; however he becomes highly offended when Sally belittles his idea. Tommy uses the interest people have for the drama to make some money.

Dick gets Mary to enter a dance contest despite the fact that Mary can't dance; Harry invites Nina to dance in the contest with him and they hit it off; Sally and Tommy's girlfriend hit it off at the mall then Tommy gets jealous when Sally sees his girlfriend naked.

The university gets a new chancellor who announces huge budget cuts. Dick organises his colleagues to take industrial action in response, but weasels out. Meanwhile Tommy gets a job at the pretzel place with Alissa.

Dick and Mary try to recapture their youths and of course Dick goes to extremes. Don conducts a stakeout from the Solomons' place when the man across the street is suspected of video piracy.

Dick and Tommy discover stock investing and then go on a roller coaster ride. Harry falls for a new female police officer; Sally wants to fight her.

Mary starts getting upset when Dick has fantasies about Nina. Sally discovers cooking tools and fancy cooking.

The Big Giant Head returns to take his son with him to the home planet. Meanwhile, Harry admits that he is still in love with Vicki, but Dick tells him that he cannot have her because the Big Giant Head will punish him; whilst Tommy attempts to help Sally beat her addiction - shoes.

When Dick finds out Mary has been seeing a therapist, he starts seeing the same one in a effort to find out what Mary has been saying about him. Sally is concerned she has a stalker. Meanwhile Tommy makes a big mistake while preparing for his first night with Alissa. 

Mary suggests she and Dick should spend time with another couple. Tommy, Harry and Sally discover the laundromat.

Mary makes a documentary about Dick and the rest of the Solomon family. However, the Solomons are worried they might be exposed as aliens and, during the filming, they almost are. In trying to cover up the secret they're aliens, they make up other secrets: Sally's a lesbian, Tommy wets his bed and Harry is an alcoholic.

Mary and Dick go to a charity auction. All the buyers get applause and Dick wants this attention too. Therefore, he bids on a painting he actually doesn't want. Don has trouble sleeping because Sally snores. Meanwhile, Tommy and Harry write a new mission statement because Harry lost the original.

Dick learns about tipping while Sally learns sex can lead to pregnancy.

Dick inadvertently attends a white supremacy rally; Sally, Harry and Tommy enter a contest intended for children.

Dick decides to have plastic surgery when he talks himself into believing he needs to be more good looking. Sally feels bad that she is so plain and feels that Officer Don is dating her out of pity. Harry, meanwhile, is chuffed when the surgeon tells him that his face is perfect.

Mary invites the Solomon's to attend a interactive murder mystery, she then gets sick before the show starts and Dick and the rest of the family believe that there really has been a murder.

Dick wrecks the family car while driving with Mary and trying to use his cell phone. Because the Solomons don't have insurance, they can't keep the car and Dick hires a rental. The rental has a lot of gadgets Dick absolutely adores, but nonetheless the Solomons start to miss their good old Rambler. Meanwhile, a slick insurance salesman tells Harry to get insurance.

When Dick discovers Mary has slept with Strudwick in the past, he decides the best revenge is to sleep with Strudwick's wife. Meanwhile, Sally gets the hots for Don after he starts riding a police motorbike, but the pair crash and Don ends up in full body plaster.

Vicki delivers her alien baby and the rest of the Solomons try to figure out how to keep the world from discovering they are aliens.