(pensive music) (footsteps clopping) - Bonjour, Eliza.

- Patrick.

- We find Nash in a bit of a pickle, in prison and licking his wounds.

So I think he has a lot of his home comforts to keep him happy within the four walls.

Load of rubbish.

I don't think he's struggling in prison, let's put it that way.

- In Season 4, Nash and Eliza went through some really tough things together.

She had to watch her close friend and colleague be sent away to prison.

And I think that that experience really solidified their relationship.

- And I think there'll always be a bit of untrustworthiness with Nash.

You're never quite sure what he's playing at.

I think what we've learned is he's been humanized more and more.

And hopefully the audience sort of warm to him.

To rock bottom, hmm?

(glasses clinking) The only way is up.

- I look forward to discovering what the future holds for those two.

- The great thing about this show is that the writing just gets better and better.

And it always started at an incredibly strong point.

But the joy of coming back here is there's always new storylines that take you by surprise, keep you intrigued and take all the characters that Rachael and Ben have so beautifully put together in new directions and surprising directions for the audience.

Do I have any money at all?

- Uh, no.

And your license has been revoked so you can no longer practice as a private investigator.

- I do not do well with negativity, Clarence.

I need some hope.

(bright music)