The Incredibles family takes on a new mission which involves a change in family roles: Bob Parr (Mr. Incredible) must manage the house while his wife Helen (Elastigirl) goes out to save the world.
While the Parr family has accepted its collective calling as superheroes, the fact remains that their special heroism is still illegal. After they are arrested after unsuccessfully trying to stop the Underminer, their future seems bleak. However, the wealthy Deavor siblings of Devtech offer new hope with a bold project to rehabilitate the public image and legal status of Supers, with Elastigirl being assigned on point to be the shining example. Having agreed for now to stay home to look after the kids, Mr. Incredible finds domestic life a daunting challenge, especially when baby Jack-Jack's newly-emerged powers make him almost impossible to manage. However, Elastigirl has her own concerns dealing with the menace of a new supervillain, Screenslaver, who is wreaking havoc with his mind-control abilities. Elastigirl must solve the mystery of this enemy who has malevolent designs on the world, with the Parr family and friends key targets of this evil.

After the events of The Incredibles (2004), the extraordinary Parr family still balances between legality and illegality. And before long, they have a brush with Metroville's police after leaving a trail of destruction during an epic battle. But with the federal government shutting down the secret superhero program, upbeat benefactor and telecommunications tycoon Winston Deavor and his sister Evelyn approach the family to restore the Parrs' tarnished public image. However, only Elastigirl will get to be the campaign's new face. As a result, once-popular Mr Incredible now juggles his responsibilities as a parent at home, clearing the way for the invincible super-mum to confront the city's latest mega-villain. Can the Incredibles handle the new reality?

Now accepting the fact they are superheroes, the Parr family still know that heroism is illegal according to the established law that prevents them from helping people. But their lives in hiding are cut short when a wealthy philanthropist approaches Mr. Incredible and Elastigirl with the idea to remove the law and make their heroic acts legal. And Elastigirl is chosen to help lead this plan, leaving Mr. Incredible in charge of the kids. Things get even more complicated when a terrifying new menace called the Screenslaver shows up and threatens to abolish Elastigirl's attempt to restore heroism. Who is the Screenslaver? Can the Parrs save the world from chaos and destruction? Can the heroic freedom be restored?

A superhero must go on another mission while undercover to protect themselves more than ever. Along the way, multiple new superpowers come out. They do their absolute best to balance their personal lives with their superhero lives. It is a matter of time that they are accepted for who they really are.

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