[spoilers] what is the best series of spooks

[LINDA]

This is a hard one .s5 and 6.But i have just watched s7 again and i had forgotten how good that was.The introduction of Lucas was great but the death of Adam was just terrible.Seeing series 7again just makes me even more angry over s9.

[yorkshiretyke]

I am a huge Harry and Ruth fan, so it pains me to say series 7 is my favourite...every episode is exciting and Lucus/Ross/Harry are fantastic together.