The Flying Doctors - Season 9 Episode 17 Broken Promises

The stress and pressure of arranging a high society wedding causes the bride to be, Emily, to collapse with exhaustion and be hospitalised. After being told that she needs absolute rest she has second thoughts about going through with the marriage and cancels it: her parents are devastated. Meanwhile, the lorry carrying the champagne supplies for the reception is involved in an accident on its way back from Broken Hill. One by one, the residents of the Crossing find themselves out at the scene of the incident and find themselves drinking their way through the goods. Also Guy has a rival in his affections for Jackie. In the end, it's all systems go back at the Crossing when the couple decide to go through with the wedding. However, by the time a celebration has been re-organised, it emerges the young couple have already eloped.