What is going on in Neighbours (UK timeline)

I think I must have missed the last few episodes because I have no idea what is going on. The one I just saw has many of the cast on a plane dressed in old-fashioned clothes, a bomb exploded on the plane and dumped the cast in the wet stuff. What is going on? Why are they all on a plane dressed as they are and who has planted a bomb on the plane?

That is the last episode - the series is over - no need to ever watch it again…honest.

Tee hee, you’re mean…although the third of your statements is correct