Ken is looking forward to an empty nest, but a painful operation and a mysterious stranger conspire to make life a lot less simple.

Dale is determined discover his own path in life and alights on Cuckoo’s potato van in an effort to follow in his father’s footsteps. Rachel is still with boring boyfriend Ben. Dylan decides to take advantage of Ken being away on a university reunion as he males plans a party where he intends to finally seduce Zoe.

Ken attempts to defend Steve for medical malpractice. Ben decides to set Dale up on a date with one of Rachel's friends.

When Ken and Dale take a trip into town, they bump into Ken's former professor, Dr. Rafferty. He has a dying wish, he wants them both to fulfill.

The senior partner at Ken's firm is retiring and Ken is in line for succession. Rachel and Ben try to spice up their sex lives.

An intruder leaves Ken questioning his manliness. Rachel and Ben are moving in together.

Ben and Dale both want to make Rachel's holiday special and Ken gets stuck in the middle.