Gus welcomes his widowed daughter-in-law and his three grandchildren from Fort Wayne, IN; neighbor Mrs. Finley wants to chop down the Witherspoons' tree; Jessie finds a job; Kris is unhappy with the curriculum at her new school; everyone adjusts to the new household.
Gus's old Marine buddy J.J. Moon visits, and his overbearing personality wears on the family; Gus enlists a reluctant Molly in the battle against a gopher; David subcontracts his home chores while working for Mrs. Taft.
Gus is called for jury duty; Kris has a fender bender while learning to drive; Jessie's photography leads to an opportunity; Molly brings Arthur to school.
Inspired by the stories of Gus and his pals, David and J.R. decide to pull a Halloween prank aided by Kris; Molly is exposed to chicken pox; Gus wants to make the kids first Halloween with him special.
Jessie and Kris argue about trust; Gus agrees to chaperon Kris and her friends on a trip to San Francisco to see a rock concert; Molly is hurt when she isn't invited to a schoolmate's birthday party.
Jessie is sure that a classmate Kris likes participated in a convenience store robbery; Molly acts as a go-between when Joe Kaplan and Gus are on the outs; David enters Arthur in a dog show.
Kris discovers that her friend Bonnie has a serious problem; David and Molly unearth a time capsule buried by their father when he was a teenager; Joe Kaplan and Gus coach Kris's softball team.
Joe Kaplan bets Gus that he can't keep from interfering in the lives of Jessie and the kids; David searches for a way to deal with bullies at school; Kris is hurt and angry when a favorite teacher jeopardizes her dream of attending the Air Force Academy.
Gus asks out a single mother, but her angry son objects and takes it out on David. Meanwhile, David likes Chelsea, Kris likes Ralph, and Jessie dates a veterinarian.