Avengers Campus is about to get a little more fantastic—and considerably more cosmic.

Beginning November 20 for a limited time, the Fantastic Four will make their first appearances in the action-packed land at Disney California Adventure Park. The timely arrival comes ahead of Avengers: Doomsday, which launches exclusively in theaters on December 18.

A Cosmic Case at Avengers Headquarters

The Thing, Mister Fantastic, Invisible Woman and Human Torch will make select appearances near Avengers Headquarters, joined by their faithful robot assistant, H.E.R.B.I.E.

The famous family has set up a mobile lab to investigate a cosmic anomaly alongside the Avengers. So, naturally, it is not exactly a routine day at the office.

Meet the Brilliantly Bendable Reed Richards

Reed Richards, better known as Mister Fantastic, is the scientific genius often leading the Fantastic Four into the unknown. After his DNA was altered by cosmic forces, Reed gained the ability to stretch and reshape his body at will.

Elasticity is handy, but his sharp mind, curiosity and devotion to his family are what keep this heroic crew moving forward when trouble comes calling.

Force Fields, Flame and a Rock-Solid Hero

Sue Storm—the Invisible Woman—is the brilliant, diplomatic heart of the family. She can vanish from sight and create powerful force fields to protect herself and those around her, all while helping hold her super-powered household together.

Her brother Johnny Storm brings the heat as the Human Torch. Able to manipulate fire and soar through the skies, Johnny is an adventurous defender of the world with his sights set even higher: one day, he hopes to fly among the stars.

Then there is Ben Grimm, the Thing: steady, powerful and fiercely loyal. His rocky exterior comes with incredible strength, but it is his determination to protect the people he loves that truly makes him the family’s reliable bedrock.

Do Not Forget the Robot

H.E.R.B.I.E.—short for Humanoid Experimental Robot B-Type Integrated Electronics—is one of Reed Richards’ inventions and an eager, thoughtful assistant to the Fantastic Four. He may run on circuitry rather than snacks, but H.E.R.B.I.E. is every bit part of the family.

For fans heading to Avengers Campus, the limited-time encounters offer a chance to spot Marvel’s first family as a new film adventure prepares to hit theaters.