Kelly babysit a terror who disappears during hide-and-seek, while both sets of parents bowl a grudge match.

Lenny has to come up with money for his dad's operation.

When Shelly and Mary wind up in the hospital, Lenny, Eddie, and Pat are left to take care of the house and the girls.

At a formal party, Lenny's hotel boss makes a pass at Shelly.

Lenny finds himself lending money to too many people.

On Lenny's day off, Kelly needs to discuss sex, Tracy announces her atheism, and Eddie breaks the television.

Lenny attends a mortified Kelly's school Career Day.

Stuck in a New York blizzard after the funeral of Uncle Shamus, the Callahan men may miss Tracy's dance recital.

Lenny's sister announces she is marrying a black lawyer.

Lenny's doctor conducts a series of gastrointestinal tests when a potentially life-threatening problem crops up.

After Pat and Mary are burglarized, they buy a gun and expect Lenny to follow suit.

An explosion on a gas line leaves Lenny trapped 10 feet below the street with an engineer and one sandwich.

Lenny's romantic interlude with Shelly is soured by his worry over a boxing match on which Eddie bet their vacation money.

When Lenny tries fixing the furnace himself, the family ends up bunking at his parents' house for heat.

The Callahans gather for a loud family dinner.

Fed up with winter, Pat flies off to Florida to stay with friend Charlie, while Mary insists on staying home.