This is where I annoy everyone by talking about episodes days later than everyone else but god that episode was a chore. Just put the VTs online after and get straight into the action - let us find out about the survivors as they find out about each other. In most cases we don't need to know much more than where they've come from really - even age and occupation are somewhat irrelevant.
Delighted with the result though - he annoyed me the first time round and baffling they asked him back, or indeed the other two returning Aussies too. I barely remember Mark and Sam and in the clip they showed of Sam's original season I just didn't recognise anyone at all - for all I know they just filmed that around the corner a few minutes earlier with some actors.
And surely everyone knew they'd be split from their loved one - isn't that the whole concept of Blood and Water after all?