"What have they done? Ruth is perhaps the best and most loved character in Spooks. What a major error of judgement."

JBGood, Worcester

"An extremely powerful and well-written episode which showed the Spooks team at their best. Although the plot was complicated, once fathomed it succeeded in depicting a credible and noble cause for Ruth's departure.

Here's hoping (perhaps optimistically) that this isn't the last we hear of Ruth."

Susie, Suffolk

"Why isn't it possible to have a little bit of happiness in Spooks? As soon as there is a normal relationship emerging it's killed off immediately. Was it really necessary to sacrifice Ruth?

Don't spoil the show by changing characters constantly like in a bad soap."

Anna Svensen, Cambridge

"I was distraught when they killed off Colin, but getting rid of Ruth too? I watched in disbelief as the final credits rolled hoping that there would be a twist. The final scene between her and Harry was beautifully acted.

I love Tim McInnerny as Oliver Mace - so self righteous, cold and menacing. And Hermione Norris as Ros is much more of a tough female lead than we've had previously. She's more than a match for Adam, who's also becoming more interesting. He's a deeper character, while retaining his calm exterior and smouldering stare."

Rachel, Manchester