The Incredicoaster is set after the events of Incredibles 2. To honor the superhero family's work in protecting the city, the citizens of Municiberg have renamed and rededicated the roller coaster at their local amusement park after the Incredibles. A queue pre-show video features interviews with the family and Edna Mode as they attend the opening, where Bob and Helen are enthusiastic about the event while Violet cynically points out that renaming an old ride isn't worth getting that excited about. However, with Jack-Jack and Edna being too short to ride, they end up waiting for the family in the VIP lounge near the loading station, which has been reconstructed into a Mid-Century Modern structure.
As the ride begins, Jack-Jack escapes, prompting a chase around the rollercoaster to retrieve him. The launch sequence at the start of the ride is called out by Dash Parr, who can be seen narrowly avoiding Jack-Jack's lasers inside the first tunnel. The next tunnel features Elastigirl stretching out to catch Jack-Jack, though his gooey form makes it hard to get a good grip of him. As guests drop out of the tunnel, Mr. Incredible tries luring Jack-Jack with a cookie and the coaster train proceeds to the loop. When Jack-Jack's fire abilities pop up in the next tunnel, Violet Parr uses her forcefields to try and extinguish them while protecting the coaster passengers. Jack-Jack then begins to multiply and numerous babies can be seen floating around the track. Finally, Jack-Jack returns to Edna, having trashed most of the lounge when going into his giant form, ending the ride.
The Incredicoaster zooms across more than 6,000 feet of track almost 1 1/8 miles making it the longest coaster at the Disneyland Resort.
Elastigirl, appears in the second tube of the Incredicoaster, stretching herself 53 feet from head to toe as she tries to grab baby Jack-Jack.
Jack-Jack appears 19 times throughout the attraction.
It took eight people to haul the Mr. Incredible figure up the coaster track to his final position on the Incredicoaster, in the second tube.