Upper Middle Bogan

When Bess Denyar, a successful doctor with an architect husband, an overbearing mother, and twin 13-year-olds at a private school, finds out that she is adopted, she is stunned. Even more so when she is reunited with her birth parents: Wayne and Julie Wheeler, who are also parents to Amber, Kayne, and Brianna, and head up a drag-racing team in the outer suburbs.

When Wayne and Julie give Bess a “Hot Lap”-a ride in a V8 Supercar-to make up for all the birthdays they've missed, Bess is shocked to discover that she is a natural.

Bess arranges a lunch for her two mothers, Margaret and Julie, which ends in disaster when Julie, unaware of Bess's allergies, puts peanuts in the meal, and Bess goes into anaphylactic shock.

While Bess is thrilled that her two families are coming together, when Danny finds out that Shawn and Edwina have skipped school and gone dirt-bike riding, he freaks out, jumping to all sorts of wrong conclusions.