Sally, Tommy and Harry return from the home planet with a surprise for Dick: a bride-to-be

Dick tries to hide his Janet predicament from Mary; Officer Don suspects that aliens have landed

Dick and Albright wage a war of practical jokes and Sally tires of Don when she meets a yoga instructor. Meanwhile, Tommy joins a rock band, with Harry as his roadie

Dick meets Albright's parents; Sally decides to move in with Nina

Dick quakes at the prospect of a physical exam. Meanwhile, Sally and Tommy house-sit Albright's house on Halloween. Which is bad news for neighborhood trick-or-treaters

Dick compensates for the loss of Mary's affections with a gain in another area: he puts on weight. Meanwhile, Tommy thinks August is cheating on him

Dick gets jury duty for the first time and struggles to deliver a guilty verdict for a clearly guilty man. Meanwhile, Sally, much to Officer Don's distress, falls for a cockney 'artist' called Seth, and makes herself over to look and sound just like him. Elsewhere, Harry and Tommy volunteer themselves for Mary's class project - they must communicate without words for five days

Sally has a new boyfriend and Dick has a new friend: Don. Meanwhile, Harry goes to school

The Solomons reflect on their sinful ways in an episode that illustrates their misdeeds in clips from past episodes

Dick has a new rival for Mary's affections: Tommy; Sally gets a job; and Harry must do without TV (commander's orders)

Dick decides to "rehabilitate" one of Officer Don's prisoners, so he pays his fine and takes him home; Mary decides to give away the dog Dick gave her

Dick hurts himself playing in a wheelchair, which puts him in one for real; Dubcek's daughter Vicki opts for celibacy, much to Harry's chagrin

Dick decides to date again, so he goes to Sally and Officer Don for advice; Harry and Tommy find a wallet with $200 in it, and decide to give the money back to its owner

Venusians disguised as gorgeous women plot to plunder Earth of its riches

Dick, Harry and Tommy set out on a cross-country odyssey to save Earth from a Venusian plot

Pickles, Harry's pet from the home planet, suddenly materializes--in human form. Meanwhile, Sally decides that she's pregnant

While Dick is using the Solomons' car for "casual" sex, Sally decides that she must have a car of her own

Tommy, an old man on the home planet, says he's tired of being a kid and "retires"; Mary tells Dick she wishes she had become a singer, so Dick decides to make her wish come true

Dick wants to get back with Mary, so he's in luck when they find themselves locked in the school library overnight. Meanwhile, Sally, Harry and Tommy search for Dick

Albright's father walks out on his wife and into Sally's life; Harry begins his career as a radio shock jock when he walks into Rutherford College's radio studio and finds it unoccupied

Dick demands that Sally and Harry go to work, so she signs on as Albright's assistant and he gets a job tending bar. Then Dick decides on a career change: he wants to be cop

Albright derides the Solomons as "weird," so Dick decides to make them "average."

Conclusion. Dick has a rival for the title of Pendelton's nuttiest professor with the arrival of the mysterious Dr. Liam Neesam

Sally's been reading romance novels, and decides to try out her fantasies on Don; Dick thinks the college cafeteria's cashier hates him; Harry receives surprising results on his GED exam

Dick orders the Solomons to go on a family-only camping trip. Then he invites Mary to go along

Dick tapes a promotional video for Pendelton; Don gives Sally a key to his apartment; and Nina and Harry find each other

Harry and Vicki prepare for an evening of amour. Then Vicki's jealous ex crashes the party. Meanwhile, Tommy "comes out" as a gourmet chef