[spoilers] Lucas. Just Lucas.

[Silktie]

I agree with Byatil's analysis on the Lucas/Sarah issue. However, this is not a new development. It has been done to every male lead Spooks has had. Tom had Ellie, then degenerated to the mad doctor and finally the first blonde CIA chick.

Then Adam had his wife Fiona, but after she died we had to suffer through the nanny, Anna the Iranian Ambassador's wife, and finally Ros.

It seems to be rather a trend that the first relationship we see these characters in are usually the one that is most interesting and makes most sense. The Tom/Ellie relationship was used effectively to illustrate how hard it is for a spy to have a relationship with someone outside the service. Adam/Fiona was a quite interesting examination of a couple both working for the Security Services, and Lucas/Elizabeta was used well to illustrate all that Lucas had lost because of his incarceration. The rest of the relationships all seemed rather gratuitous.

My main issue with the Lucas/Sarah relationship was that it made Lucas look like an idiot. She played him like a banjo, and I always thought of Lucas as more intelligent than that. He kept on defending her long after he was given strong proof that she was bad.