Spy drama Spooks returns to BBC One for a tenth and final series next month, promising a “fittingly high octane thrilling finale”.

Following the dramatic betrayal of Lucas North in Series 9, Section D has a new leader in Erin Watts, played by Lara Pulver (True Blood, Robin Hood). Meanwhile, Geoffrey Streatfeild (Ashes To Ashes) joins the cast as a new IT supremo, Calum Reed, alongside returning characters Harry (Peter Firth), Ruth (Nicola Walker), Dimitri (Max Brown) and Tariq (Shazad Latif).

> Order the Series 10 boxset on Amazon.

Episode 1 airs at 9pm on Sunday 18th September. Here are ten teasing lines of dialogue from the episode…

» “I think he wanted your forgiveness.”

» “Would it have killed you to pick up a golf club once in a while?”

» “I have no interest in being a politician.”

» “Why do we do it, this job?”

» “Well, I’ll get Q branch to have a look at it.”

» “Can I rely on you, Harry?”

» “Now that is a blast from the past…”

» “Oh balls, have I ruined everything?”

» “This is a kill order.”

» “What aren’t you telling me, Harry?”