Spooks, Series 5

Zaf:
You awake?

Ruth:
Didn't sleep.

Zaf:
No, neither did I.

Ruth:
I'm going to have to remind myself of why exactly I did this for the rest of my life.

Zaf:
You know why.

Ruth:
How much longer?

Zaf:
Only a few hours now.

Ruth:
And then?

Zaf:
And then it's up to you.

Ruth:
Yeah. If we ever bump into each other again... either here or abroad, I know what you are trained to say, but if we do...

Zaf:
I'll smile.

Ruth:
Promise?

Zaf:
Of course. I smile at every pretty woman I pass.