Martin is having trouble holding on to anything he owns: keys, chairs, and sanity. Meanwhile, Jenny insists that Dad and Betty come to her parent/teacher night.
Simon is jealous that Debbie is doing a soft-drink commercial and Nudge wants to manage her; Martin and Simon are unimpressed with Jenny's unfeminine behaviour.
The Kellys prepare for a visit from their cousin Elaine, a boring, buck-toothed, chubby country girl. But they're in for quite a surprise, especially Nudge.
Simon convinces Martin to give him a job in the office, so Dad makes him Office Manager. Naturally Betty is very upset. To make matters worse, Simon decides that Betty's filing system needs revamping.
Debbie asks for a clothing allowance to compensate for the clothes that Jenny ruined; Stan comes down from Walgett with a startling proposition for Betty.
The forces of confusion gather as the date of Betty and Stan's wedding nears: Simon and Nudge plot a surprise for Stan's bucks night, and Betty's parents mysteriously disappear.
At last the big day has arrived: things aren't going smoothly for the bridesmaids; Stan reassures Martin that all will be right on the night; Betty has a surprise for everyone.
Simon and Nudge give Martin a headache when they decide that drums are the answer to their boredom problem, but he discovers that he has a not-so-silent partner in Betty.
Confusion and angst reign when Jenny decides to divorce her family; Betty becomes embroiled in litigation with the local lawyer, who seems intent on suing everyone in sight.
When cousin Elaine drops in to visit, Martin makes her welcome despite the family's protests. Meanwhile, Nudge claims to have found the secret to success with women.
When Martin needs some interior decorating ideas for a client, he hires his attractive neighbour Jeanette, which upsets Betty, who wanted the job herself.