Having hung up their capes, Helen is called on to lead a campaign to bring Supers back, while Bob navigates the day-to-day heroics of "normal" life at home with Violet, Dash and baby Jack-Jack - whose superpowers are about to be discovered.
Their mission is derailed, however, when a new villain emerges with a brilliant and dangerous plot that threatens everything. But the Parrs don't shy away from a challenge, especially with Frozone by their side.