After discovering she's still married, Kath tracks down her ex to finalize their divorce. Meanwhile, Kim thinks she may have found her calling upon meeting a tough Roller Derby skater.

Kath takes measures to fix Kim's marriage after Kim and Craig's bickering ruins Kath and Phil's date. In on the plan, Phil teaches Craig how to be a better partner.

In order to prepare for Kath's bachelorette party, Athena brews a batch of her special tea for Kath, Kim and Tina. Craig and Derrick, meanwhile, take a more traditional approach for Phil's bachelor party by hiring a stripper.