(Spoiler alert: Do not read further if you have yet to watch the final episode)

“HARRY Pearce…”

The poignant last ever episode of Spooks has just finished.

There will be no more.

Nicola Walker summed up my feelings in an interview this week when she said:

“The storyline for this last series is the right ending for the show.

“I don’t know if it’s going to please everybody but it’s a very clever and grown up end point.”

Peter Firth's final hour as Harry Pearce.

“YOU and I, we’re made of secrets.”

Ruth Evershed and Harry Pearce face the final curtain together.

Standing by a familiar estuary as we hold our breath to see what will happen.

Spooks series 10, last ever episode.

The Grid: Class of 2011

HARRY and Ruth are sitting together on a park bench.

Ruth: “Do you know what it’s like to feel something for someone and then one day realise you don’t even know them?”

Harry: “You do know me. You know all the important things.”

Spooks series 10, episode four.

In which we learn battle-weary Sir Harry has so many more secrets.

Geoffrey Streatfeild as Calum Reed

SPOOKS returns for its farewell series at 9pm tonight.

With the BBC1 schedulers placing Sir Harry and his team head-to-head against ITV1 drama sensation Downton Abbey.

So far I’ve seen the first two episodes of both Spooks 10 and Downton Abbey 2.

As I’ve said before, I hope drama fans ignore the hyped-up “rivalry” and find the time to watch both.

Geoffrey Streatfeild joins the Spooks regulars this evening as Calum Reed.

Lara Pulver as Erin Watts

SHE’S the new woman on The Grid.

Essex-born actress Lara Pulver plays Erin Watts, the MI5 high-flyer who has been sitting in Sir Harry Pearce’s seat during his suspension.

Moving to head Section D when he is temporarily re-instated.

There’s more to Erin than first meets the eye.

Harry Pearce (Peter Firth) and Ruth Evershed (Nicola Walker)

“NOT while I still draw breath.”

Sir Harry Pearce is a joy to behold in the first episode of the last ever series of Spooks.

With just six hours left before we say goodbye, the writers of our favourite spy drama appear intent on celebrating the man who has been there from the very start.

Or perhaps more accurately, a skilled actor by the name of Peter Firth.

Jane Featherstone on BBC1 Breakfast today

“IT does go out with a fantastic bang. Ruth and Harry’s conclusion is sensational and there are some surprises for the loyal fans.”

“I just don’t want it to get tired and old.”

“We kill off our characters all the time in their prime. The show’s got to be killed off in its prime as well.”

Three quotes from Jane Featherstone live on the BBC1 Breakfast sofa around 8:40am today.