Episode 8 (S04E08)

As the group gets ready to fly to Australia for Pete and Jo's wedding, Karen faces a crucial decision between David and Mark. Meanwhile, Rachel is thrilled at the prospect of meeting her younger sister in Sydney for the first time. On the other hand, Adam and Rod are busy trying to persuade Pete that marrying Jo might not be the best idea after all. Tensions rise as emotions run high in the lead-up to the celebration.