Blurb for the ep is as follows:
Night of the Long Knives
The crew of HMAS Hammersley uncovers a terrorist plot to assassinate a senior US official. Kate has doubts about Hammersley's popular new crewmate, a war hero with a dark secret. Mike resists a promotion to Navcom, even though it would allow him and Kate to pursue their relationship.
Guest Starring: Tammy Macintosh as Maxine White, Freya Stafford as Caroline, Marcus Johnson as Davis
I'll be interested to see what Conrad Coleby is like in this - I've never particularly liked him in anything else I've seen him in, but in the previews he looks like he has the potential to be an interesting character.
As for Mike & Kate and the relationship, I think (and it's just my opinion) that they need to either get them together or put it to rest for good. Of course, if Buffer was still there I'd be pulling for him and Kate, I think Jeremy & Lisa have more chemistry than Ian & Lisa (realise I'm in the minority on that one!)
The title does interest me though; the night of the long knives was a purge that took place in Nazi Germany when the Nazi regime carried out a series of political executions. Given that Mike is resisting a promotion to Navcom and Tammy's character is basically replacing Steve Bisley, I wonder if theres political hikinks going on in Navcom?
And interestingly, the blurb for ep 2 refers to "a new commanding officer" - what does that mean for Mike?