James Matthey answers key questions on the decider.
While North Queensland managed to weather the storm for the opening 20 minutes the favourites started to flex their muscle from midway through the half.
Addo-Carr and his partner in crime, Suliasi Vunivalu, who between them have become the most prolific try-scoring wing partnership in 60 years, will tell you they have simply put the finishing touches on as they have run in a combined 46 tries this season. They're better than every other team in the competition and have been all season.
The trophy marks their third NRL Premiership after successes in 1999 and 2012, and helps secure benchmark status for Craig Bellamy and his team, while also sending off champion halfback Cooper Cronk in flawless fashion, with the long-time Storm and Maroons star calling time on his career at the club.
Why should I cheer for the Storm?
Their big three Cameron Smith, Cooper Cronk - in his farewell match for the club - and Billy Slater were hugely influential figures and the contest looked over at halftime. A win would be the icing on Smith's flawless season that already includes an Origin series win and Dally M triumph. View our NRL Grand Final tips and preview below.
'Thank you for everything you've done for me over my career, but especially the last few years.
It's their second grand final in three years but, somehow, they've done it without Johnathan Thurston.
Why will the Storm win? Addo-Carr bagged his double in the 73rd minute after some lovely lead-up work from Cronk and Slater before a handsome long-cut-out from Tohu Harris to seal the dominant 34-6 result. This is Cronk's last game for the club and they can back up their quality by riding the emotional roller-coaster. They've been there and done it before.
But when Storm coach Craig Bellamy got his hands on him at the Storm, he turned him into a safe, reliable contributor, as he has done with so many rejected fish over the years.
With nine forced dropouts in their last two games, the Cowboys have also been able to earn repeat sets efficiently.
The Cowboys are on a hot streak, defying the odds each time this finals series. Coach Paul Green's men are full of confidence and have nothing to lose - a combination that could very well prove the flawless recipe for premiership success.
Cowboys star Michael Morgan was embarrassed by the defeat.
Kick-off is scheduled for 9.15pm (New Zealand time).
"I'm confident that they can get the job done", MrsDwan said. Cowboys wing Kyle Feldt is paying up to $17 to be the first tryscorer.
On grand final day 12 months ago Josh Addo-Carr had been playing fullback for the Redfern All Blacks in Koori Knockout when at one stage he was cleaned up by a coathanger as he strove for the line.
Smith, who was excellent and would have been a deserving Clive Churchill victor, fed Finucane at first receiver, and he barged past Gavin Cooper and Ben Hampton to score.