Line Of Duty star Martin Compston reveals viewers need to keep watching after ...

Line Of Duty fans are waiting in huge anticipation of Sunday night's series five finale .

And the BBC show's star Martin Compston has revealed viewers have another treat in store after the credits roll.

Tweeting hours ahead of the show's airing, the actor, who plays Steve Arnott, advised fans to stick around for 'something at the very end of the show.' 

Surprise! Line Of Duty fans are waiting for Sunday night's series five finale . And the BBC show's star Martin Compston has revealed viewers have a treat in store after the credits roll

Surprise! Line Of Duty fans are waiting for Sunday night's series five finale . And the BBC show's star Martin Compston has revealed viewers have a treat in store after the credits roll 

Martin send his Twitter followers wild when he posted:

 'Hey folks hopefully if your jaws are back up from the floor in time, there's a little something at the very end of the show which means a lot to the whole @Line_of_duty family, much appreciated if you could stay tuned for it.'  

The actor looked cheerful on Sunday during an appearance on Sunday Brunch - despite being left 'shaken' after a truck crashed into his cab just days earlier.

After the credits: Tweeting hours ahead of the show's airing, the actor, who plays Steve Arnott, advised fans to stick around for 'something at the very end of the show'

After the credits: Tweeting hours ahead of the show's airing, the actor, who plays Steve Arnott, advised fans to stick around for 'something at the very end of the show'

The 34-year-old actor escaped unscathed after the HGV ploughed into the side of the vehicle he had been sitting in during a taxi ride through Salford, Manchester, on Thursday.

But the star appeared unfazed as he chatted to hosts Tim Lovejoy and Simon Rimmer on the Channel 4 show, discussing the much-talked-about Line Of Duty finale - and hinting that fans won't see the main plot of the series resolved any time soon.

Of the finale - which airs in a matter of hours - he said: 'The show has already been commissioned for another series - but who knows who will make it there.

He's okay: Line Of Duty star Martin Compston looked cheerful on Sunday during an appearance on Sunday Brunch - despite being left 'shaken' after a truck crashed into his cab just days earlier.

He's okay: Line Of Duty star Martin Compston looked cheerful on Sunday during an appearance on Sunday Brunch - despite being left 'shaken' after a truck crashed into his cab just days earlier.

'I think what makes [writer] Jed [Mercurio] so good at writing is that there will be a few pay-offs. I hope people won't be disappointed.

'There will be some things resolved. We've got a 90-minute episode. I think it's alright.'

Martin's words suggest there will be unanswered questions and that fans will have to wait until, likely 2021, to find out more. 

Close call: The 34-year-old actor escaped unscathed after the HGV ploughed into the side of the vehicle he had been sitting in during a taxi ride through Salford, Manchester, on Thursday

Close call: The 34-year-old actor escaped unscathed after the HGV ploughed into the side of the vehicle he had been sitting in during a taxi ride through Salford, Manchester, on Thursday

Unfazed: The star chatted to hosts Tim Lovejoy and Simon Rimmer on the Channel 4 show, discussing the much-talked-about Line Of Duty finale - and hinting that fans won't see the main plot of the series resolved any time soon

Unfazed: The star chatted to hosts Tim Lovejoy and Simon Rimmer on the Channel 4 show, discussing the much-talked-about Line Of Duty finale - and hinting that fans won't see the main plot of the series resolved any time soon

With the biggest question being 'who is H?', it could be that viewers don't actually get the answer. 

Martin plays AC-12's Steve Arnott squirmed a little when probed about what could happen, yet kept his cool. He seemed more than healthy following his car accident which, according to reports, saw one of the doors of the vehicle left completely destroyed.

Dashcam footage obtained by The Sun shows the moments after the star escaped serious injury as he was being driven back to his hotel in the city.

Of the finale - which airs in a matter of hours - he said: 'The show has already been commissioned for another series - but who knows who will make it there'

Of the finale - which airs in a matter of hours - he said: 'The show has already been commissioned for another series - but who knows who will make it there'

Of the finale - which airs in a matter of hours - he said: 'The show has already been commissioned for another series - but who knows who will make it there'

The wait is over... or is it? Martin's words suggest there will be unanswered questions and that fans will have to wait until, likely 2021, to find out more

The wait is over... or is it? Martin's words suggest there will be unanswered questions and that fans will have to wait until, likely 2021, to find out more

Tell us more: Martin plays AC-12's Steve Arnott squirmed a little when probed about what could happen, yet kept his cool. He seemed more than healthy following his car accident which, according to reports, saw one of the doors of the vehicle left completely destroyed

Tell us more: Martin plays AC-12's Steve Arnott squirmed a little when probed about what could happen, yet kept his cool. He seemed more than healthy following his car accident which, according to reports, saw one of the doors of the vehicle left completely destroyed

Taxi driver Derek Burton, 71, who claimed he had been waiting at a red light when the accident took place, described the moment the large truck smashed into his vehicle. 

He told The Sun: 'There was a thundering bang. I thought it was a bomb. Martin screamed. We didn't know what happened. We hadn't seen the truck.

'It

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