NSW Police and Make-A-Wish make "Iron Boy" Domenic's superhero dreams come true.

Children’s charity Make-A-Wish has joined forces with NSW police today to make a little boy’s dreams come true in a remarkable wish-grant.

Seriously ill Domenic, nine, has cystic fibrosis and has always dreamed of becoming a superhero and saving the world. Today he has been tasked with saving the city of Sydney from the stranglehold of notorious villain Ultron.

Domenic’s wish has been granted in an uplifting and elaborate setup unfolding in Sydney today, as he endeavors to rescue Make-A-Wish reporter Hope Joy, who is being “held captive” from Ultron’s evil henchmen on Sydney’s Clark Island.

Domenic was helicoptered to Police HQ for a full briefing of the situation this morning where he received pleas for help from the NSW police commissioner, NSW Premier and Sydney Lord Mayor.

Domenic’s quest is expected to include a high-speed boat ride via police’s Rigid Hull Inflatable Boats to battle henchmen and rescue Hope before an ultimate showdown battle with Ultron on the steps of the Opera House at 1:30pm AEDT.

Premier Mike Baird is among the high profile figures involved in the mission:

As Domenic saves the city from the evil clutches of Ultron, the hashtag #IronBoyAU is trending with ongoing updates and an influx of messages of support, including from celebrities.

It is understood that Iron Boy Domenic will later be presented with a special bravery award by the NSW Chief Commissioner, Andrew Scipione.