When an ensemble of actors who used to star in a television show called Galaxy Quest are contacted by real aliens to help stop the extermination of their species, the actors must step up and assume their roles for real.

Brad has a pimple before a big date. Jill sets Wilson up on a blind date with one of her professors, Judith. They seem compatible, but Wilson seems happy to keep the relationship on an intellectual level only.

Tim and the boys visit the hardware store where Harry and Al are working. The boys want a pocket knife, and after they leave, the knife is just gone. Al talks to Tim about the boys taking it. Tim & Jill find the knife in Mark's drawer.

Jill's sister Carrie, a globetrotting photographer, comes to visit, and their different paths in life create conflict. Meanwhile, Tim can't seem to stop arguing with his brother Marty, and the strife even spills over to create friction between Al and his brother Cal.

After eating Polish food, Tim's stomach is bothering him so he stays up all night watching old Tool Time episodes.

After eating Polish food, Tim's stomach is bothering him so he stays up all night watching old Tool Time episodes.

Tim & Jill are to double date with Al & Ilene at a play, but first Tim and Al have to sell tickets to a hockey game. Tim & Al get caught scalping the tickets. Wilson watches the boys while Tim and Jill are out.

Tim accidentally throws dinner into the trash compactor and then drops Jill's ring down the furnace. Tim speaks to two guys on how to talk to women on Tool Time, and he calls Jill an old hen.

When Tim accidentally exposes himself to his equally naked sister-in-law Nancy, who's using his and Jill's shower, he suggests they keep quiet about the incident. However, Nancy breaks the silence and a more uncomfortable one descends.

For a segment on Tool Time, Tim agrees to fix the furnace is Benny's aunt's basement, but disaster strikes when Benny fails to tell him that there are TWO gas leaks in the house. Benny soon wears out his welcome as Tim's house guest, as everyone struggles to repair the aunt's home while she is out of town.

Tim puts a dance floor in the basement for Randy's birthday party, but he over-waxes it, causing Randy's friend Michelle to sprain her ankle; Randy is embarrassed that Tim is now sending his friends to the hospital.

After a Detroit magazine selects Al as the city's most eligible bachelor, women begin constantly flirting with him, causing him to lose sight of his priorities and making Ilene jealous. But the reasons for the flirting may not be what they seem.

Tim invites his friends over to watch the Super Bowl, but his plans are thrown off when Jill comes down with the flu.

Everyone is stunned when Tim impulsively sells his hot rod to a pizza magnate - especially Brad, who helped him build it, so Tim and Brad try and talk the millionaire into selling it back. Meanwhile, Randy is embarrassed that Jill still goes along with him when shopping for clothes.

When he gets overwhelmed by his new paper route, Brad pays Randy and Mark to do his homework and chores.

When Jill's parents come to visit for Christmas, her mother complains that Jill's father just wants to spend his retirement sitting around the house.

While using the garage to make scenery for Mark's school Christmas pageant, Jill accidentally leaves Tim's hot rod outside during a snowstorm, just a day before he's been asked to display it.

Mr. Art Leonard, Tim's favorite old metal shop teacher, is invited for an appearance on Tool Time, along with some of his old classmates. Unfortunately, during a taping of the show it becomes clear that the man who inspired a young Tim Taylor to seek more power is losing much of his own when his crippling arthritis is revealed, as well with his bitterness about his condition.