If this is the last Series how will it end?

[Silktie]

I think the show will end with Harry finally becoming fed up of being the only honourable defender of the realm, and plotting some anarchic act to bring the whole corrupt lot in the security services down before he goes. He gets Ruth and Malcolm (who secretly helps him from his retirement cottage next to the sea with only his trusty laptop) to help him. Ruth agrees after Harry finally locks them both in a room and refuses to let her leave before they both admit how much they love each other. Lucas takes over from Harry and his first job in charge is to hunt Harry down for what he's done, but he lets Harry and Ruth get away because he secretly agrees with him. Harry and Ruth make their getaway to France, where the final shot is of them getting married in a small chapel, with Malcolm as the only witness.