Gordon Shumway, last known survivor from the planet Melmac, crash-lands his spaceship into the Tanner family's suburban garage. Willie dubs him "ALF", short for Alien Life Form. After convincing a military officer that they are not harboring a space creature, the Tanners decide to take ALF in as a member of the family.

Gordon Shumway, last known survivor from the planet Melmac, crash-lands his spaceship into the Tanner family's suburban garage. Willie dubs him "ALF", short for Alien Life Form. After convincing a military officer that they are not harboring a space creature, the Tanners decide to take ALF in as a member of the family.

ALF decides to have some fun while a nervous Mrs. Ochmonek baby-sits Brian.

The Tanners continue to try and jog ALF's memory, and deal with the police at the same time.

ALF goes through a 24-hour period of bizarre behavior.

Willie and ALF both talk to a psychologist.

ALF thinks he witnessed a murder at a neighbor's house.

When Mr. Ochmonek becomes sick during a flight, ALF flies the plane.

Mrs. Ochmonek thinks she's gone crazy when she spots ALF in the backyard.

ALF befriends the Ochmoneks' belligerent nephew, Jake.

ALF demands a fair trial after being accused of throwing a football through the Ochmoneks' window.

ALF lends a hand with the neighborhood block patrol and ends up confronting a prowler in the Ochmoneks' house.

It's up to Willie to save ALF from the SWAT team surrounding the Ochomonek house, in which ALF had been chasing a prowler.

Willie abandons his belief in pacifism after meeting the hostile father of the bully who's been pushing Brian around.

ALF fantasizes that he reveals his existence to the world and serves as substitute host on David Letterman's show.

ALF takes a job as a paper carrier when he learns that the cost of his upkeep is preventing Lynn from attending her first-choice college.

In a fantasy sequence, ALF's guardian angel shows him what the Tanners' lives would be like without him.

The Tanners let Trevor Ochmonek stay at their house after he has a fight with his wife.

The Tanners are invited to a Thanksgiving dinner with the Ochmonek's bizarre relatives.

ALF must avoid the Alien Task Force when a bum blows the whistle on him.

In a nightmare, Willie dreams ALF is his school roommate.

ALF is convinced that a reclusive neighbor is actually Elvis Presley.

ALF has an allergic reaction to a baby.

ALF sees Jake's kleptomaniac mother arrives for a visit, and steals a broach from Kate.

ALF imagines in black and white that he and the Tanners are silent-movie stars.

ALF prepares for the worst after experiencing a mild earthquake.

ALF shields Willie when a criminal resembling him is profiled on a crime-stopper TV show, but Trevor turns him in.

ALF's attitude toward cats changes after his first encounter with kittens.

The Tanners pamper ALF after he catches his first Earth cold.

ALF is relegated once again to the attic when the Tanners throw a Hawaiian luau.

ALF dreams he's a famous stand-up comic.

As a newly ordained Melmacian minister, ALF must officiate a ceremony on Earth.