Gordon Shumway, a Melmacian who escaped his planet before it was destroyed, crash lands into the garage of the Tanner family.

Everybody but Brian and ALF are leaving the house for the evening and Kate doesn't want ALF to babysit Brian, so Willie calls Mrs. Ochmonek.

Lucky is missing and the evidence suggests that ALF ate Lucky, although he claims to be innocent.

ALF, having lost his planet in an explosion, becomes very concerned about earth's nuclear proliferation.

ALF is insulted that the Tanners consider him a parasite, free-loader, sponger. He tries to make money to be less of a burden on the family.

ALF feels lonely and has no one to talk to outside the family.

Brian's 7th birthday is approaching and it gets ALF depressed, because he realizes he's never going to see his friends on Melmac again.

Lynn is excited because Scott wants to keep all his band equipment in the Tanners' garage. Willie is not so excited.

It's Willie's birthday. ALF gives him a box he found in the basement. It's full of photos from high school and college.

Lynn is going to a concert with her friend but Willie and Kate are late and the girls are in danger of being late for the concert.

Willie suggests that they go to San Diego on holiday. Kate is all for it, but there's a slight problem: what to do with ALF?

It's Christmastime. Unfortunately ALF chops the Christmas tree into firewood before anyone notices.

Kate's mother, who is not on warm terms with Willie, arrives for a surprise visit that forces the Tanners to lock ALF in the garage for "a few days".

ALF and Kate's mom are arguing about TV. Kate's mom thinks ALF's favorite soap opera is sleaze, and shows him her favorite which ALF thinks is boring.

Willie catches ALF from eating a box of chocolate that was to be a Valentine's Day present for Kate.

ALF bumps his head and loses his memory. All he knows is that his name is Wayne Schlagel and that he's an insurance agent.

ALF is now into gardening, which means he's turned over the entire Tanner backyard.

ALF starts to go through a phase where his erratic behavior and hunger for cats will, in his own words, make him "ALF to the tenth power".

Brian has to lie to his friend who wants to come for a sleepover that the Tanners' basement is flooded, because ALF must be kept secret.

There's a power blackout, so ALF is passing the time by watching the Tanners' neighbors, the Ochmoneks, who are fighting.