In the fourth episode of the BBC One spy drama’s tenth and final series, a controversial religious leader has his appeal for parole rejected and sends two recently released inmates on a revenge suicide mission.

Meanwhile, Harry’s suspicions about CIA deputy-director Jim Coaver are compounded.

Episode 4 airs at 9pm on Sunday 9th October. Here are ten teasing lines of dialogue from the episode…

» ‘It’s a no win. I get rather a lot of those.’

» ‘That’s politics, Ruth. You’ll learn quickly.’

» ‘We need your help with Jim Coaver.’

» ‘I can’t do it, Harry.’

» ‘Let’s see if he’s on Facebook…’

» ‘You know you don’t have to do this.’

» ‘So what is it with you guys and hanging about by the river?’

» ‘You stupid man…’

» ‘I will not allow anything to undermine this operation.’

» ‘Big kiss for you!’

> Order the Series 10 boxset on Amazon.

Are you looking forward to the episode? Let us know below…