Brie Larson made her debut as the Marvel Cinematic Universe’s newest hero Tuesday morning as the first trailer for Captain Marvel aired on Good Morning America.

Captain Marvel’s appearance was first teased when Samuel L. Jackson’s Nick Fury paged her in the end-credits scene of Avengers: Infinity Wars but now we see her in action. The film centers on Carol — an Air Force pilot in the ’90s who gains extraordinary powers after she’s infused with Kree alien DNA. When we first meet her, she’s crash landing on Earth, right in the middle of a still-open Blockbuster.

She soon meets Nick Fury circa being low on the S.H.I.E.L.D. totem pole and with two good eyes. He tells her “War is a universal language. I know a renegade soldier when I see one. Never occurred to me that one might come from above.”

He is referring to the Kree-Skrull War, an intergalactic conflict between two alien races. Carol has been working as a member of Starforce but finds herself still drawn to Earth, but can’t remember why. “I keep having these memories,” she says, as scenes and flashbacks mix together of her in battle, in training for the Air Force, and as a little girl.

We then get a series of rapid shots, and we get glimpses of Lashana Lynch as Carol’s Air Force best friend Maria Rambeau, Carol wearing her iconic helmet from the comics, and the return of Lee Pace’s Ronan the Accuser from Guardians of the Galaxy.

The trailer ends with a bang as we see Carol generating massive amounts of energy and warning, “I’m not what you think I am.” Showcasing that she is indeed the most powerful superhero in the MCU.

Captain Marvel hits theaters on March 8, 2019.

Take a look at the first poster and trailer below.