Carol Danvers destroys the Supreme Intelligence, the artificial intelligence that leads the Kree empire.[a] This leads to a civil war on planet Hala, the Kree home world, rendering the planet barren as it loses its air, water, and sunlight over the next 30 years. The Kree come to know Danvers as “the Annihilator”.
The Kree’s new leader Dar-Benn discovers one of the two legendary Quantum Bands, which were previously used to create a network that allows fast travel across space. She uses the Band to forcibly open a new jump point that connects to the network. The resulting anomaly impacts the entire network, including a jump point near Earth’s S.A.B.E.R. space station run by Nick Fury. Captain Monica Rambeau investigates the jump point near S.A.B.E.R. while Danvers investigates the new one that Dar-Benn opened. When they touch their respective jump points, Rambeau is transported to Danvers’s location, Kamala Khan—who has the other Quantum Band on Earth—is transported to Rambeau’s location, and Danvers is transported to Kamala’s house. The three use their different light-based powers to fight off Kree enemies, leaving Kamala’s home destroyed.
After the trio return to their original places, Fury and Rambeau visit Kamala on Earth. Rambeau surmises that their light-based powers are linked through quantum entanglement and that they switch places when any of the three use their powers simultaneously. They join up at a Skrull refugee colony on planet Tarnax, which Danvers helped found and where a peace treaty is being negotiated with the Kree. When talks break down, Dar-Benn rips open another jump point which siphons the atmosphere from Tarnax to restore breathable air to Hala. After a hasty effort to evacuate the colony, Danvers, Rambeau, and Kamala form a team that Kamala names “the Marvels”. Danvers explains that Dar-Benn’s repeated rupturing of jump points is causing instability in the network and endangering the entire universe. They deduce that Dar-Benn is targeting planets that are meaningful to Danvers, whom Dar-Benn blames for the desolation of Hala.
The Marvels travel to the water planet Aladna—where people communicate in song—and warn Prince Yan, Danvers’s husband through a diplomatic act. Dar-Benn arrives and tears open a jump point, drawing the planet’s water to Hala. Her final plan is to use the energy from Earth’s sun to restore that of Hala’s sun. On S.A.B.E.R., Goose—Danvers’s cat-like pet Flerken—gives birth to a litter of kittens that can temporarily consume people, which Fury uses to evacuate the station’s personnel. Dar-Benn steals Kamala’s Band and attempts to use both Bands, but this destroys Dar-Benn, ends the Marvels’ entanglement, and leaves behind a rupture between realities. Kamala reclaims the Bands and joins Danvers to energize Rambeau, allowing her to close the rupture but stranding her on the other side. Kamala returns to Earth and Danvers uses her power to restore Hala’s sun.
Kamala’s family helps Danvers move into Rambeau’s house. Kamala’s short-lived team-up with Danvers and Rambeau inspires her to seek out other young heroes and form a new group, starting with Kate Bishop. In a mid-credits scene, Rambeau awakes in a parallel universe where she is greeted by Binary—an alternate version of her mother Maria—and the mutant scientist Hank McCoy.
