Could Agents of SHIELD Do Secret Invasion?

Mild spoilers for Agents of S.H.I.E.L.D.'s season 5 premiere

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While Agents of S.H.I.E.L.D. began as a show reacting to the larger events of the MCU, it's grown into a series entrusted with some core characters and storylines from Marvel Comics. Ghost Rider, Inhumans, and LMDs all debuted on the show, and recent comic arcs like Inhumanity have more or less played out on the series. With the arrival of season 5, the agents have made the jump to space and once again come face to face with the Kree.

Before the intergalactic race appeared in Guardians of the Galaxy, the Kree first appeared on Agents of S.H.I.E.L.D. Moreover, they have a far larger impact on the television side of the MCU than the films so far. That will all change when Captain Marvel makes them integral to its plot by adapting the Kree-Skrull War, but given how essential Agents of S.H.I.E.L.D. has been to laying groundwork in the MCU, could the Skrulls make their debut on the series first to kick off Secret Invasion?

Related: Avengers: Infinity War Probably Won’t Affect Agents of SHIELD

What Is Secret Invasion?

Created, like much of the Marvel Universe, by Stan Lee and Jack Kirby, the Skrulls debuted back in 1962's Fantastic Four #2. Over the decades, their history has been fleshed out and their animosity towards the Kree has been a key part of their story. Crafted by the Celestials from a primitive race, the Skrulls evolved into three different species that constantly warred. Eventually, the branch that possessed shape-shifting abilities won out, and went out into the cosmos to impose their will on other civilizations.

When the Skrulls arrived on Hala, they pit the planet's two races—the war-like Kree and the peaceful Cotati—against one another in a contest of technology. Before the winner had been decreed, the Kree slaughtered the Cotati and attempted to claim victory. The Skrulls were not pleased, leading to the Kree killing them as well and using their confiscated technology to jumpstart their empire. By the time word of this reached the Skrull homeworld, the seeds of the Kree-Skrull War had been planted.

The conflict itself raged for thousands of years, but the Kree-Skrull War that most comic fans refer to is the event that played out in Avengers #89–97 in 1971 and '72. It's that conflict that Mar-Vell and Carol Danvers played a role in, and its sequel in the early '90s will also likely inform Captain Marvel. When it comes to the Skrulls, however, the arc is second only to Secret Invasion.

After the cosmic Annihilation story left the Skrull Empire in ruins, the race began their revenge: a massive, covert invasion of Earth using shape-shifted Skrulls as sleeper agents. Written by Brian Michael Bendis, the event stretched across 2008 and '09 in an 8-issue comic and a variety of crossovers and spinoffs. Dozens of prominent heroes and villains were revealed to be Skrulls in disguise, a storyline that led to paranoia, shattered alliances, and the opportunity to retcon a number of backstories. The fallout of the event created new stories of its own and the fear the Skrulls sewed is still present in the modern Marvel Comics universe.

With Phase 4 set to tell a brand-new story in the MCU off the back of a cosmic clash, the news that Captain Marvel would introduce the Skrulls solidified years of fan theories that Secret Invasion is coming to the big screen. But given the complex nature of the story and the seeding required to set it up, could the now-intergalactic Agents of S.H.I.E.L.D. tackle the event instead?

Skrulls In The MCU

The origin of the Marvel Cinematic Universe was an attempt to allow blockbuster superhero films to mirror the storytelling of comics. Characters could crossover from one film to another, and all of the events of each movie would exist in one cohesive world. What's more, massive team-ups and interconnecting stories could be introduced. The Avengers proved this plan was a critically and financially viable option, and Avengers: Infinity War is set to push the idea even further. But another important aspect of the MCU is its extension outside of cinemas.

While the Marvel-Netflix shows and Runaways operate in their own little corner of the MCU, Agents of S.H.I.E.L.D. was instigated by The Avengers. Though the films have yet to acknowledge the events or stories from the show, the series has regularly based its narrative on the fallout of the films. Captain America: The Winter Soldier created an entirely new status quo for the series, and Thor: Ragnarok and Guardians of the Galaxy inspired Agents of S.H.I.E.L.D. to go cosmic this season.

Even after the Kree were announced as a big part of Captain MarvelAgents of S.H.I.E.L.D. has still been free to make them the central protagonists of the first part of season 5. The future setting of the show also means they can skip a lot of the groundwork of setting up a story based on the films. One of the chief issues the average moviegoer has the MCU (or any shared universe) is how much they need to know about other films. Because of this, the idea of a multi-tiered invasion slowly unfolded on Earth might be something better suited for the prolonged and serialized nature of a TV show. Of course, there's still one big problem: this may be Agents of S.H.I.E.L.D.'s last season.

Every year, fans are both surprised and relived when Agents of S.H.I.E.L.D. gets renewed. The series' ratings have never been that strong for an ABC show, though its critical acclaim has increased with each season. When it came to season 5, word is Disney helped save Agents of S.H.I.E.L.D. from being cancelled. But despite all that, most people believe this will be the show's last gasp. If that's the case, it's hard to imagine the show introducing a massive Skrull-based plot before Captain Marvel even hits theaters in 2019.

If Agents of S.H.I.E.L.D. does get at least one more season, then this year could easily see the conflict with the Kree slowly introduce one involving the Skrulls. The future setting could tease their chaos, while the actual Skrulls could debut in the past/present once the agents return inevitably return home. Most excitingly, but the show could reveal that one of the agents is a Skrull in disguise, something that would be able to play out much more dramatically than in a film. With the groundwork laid, Agents of S.H.I.E.L.D. could go full-blown Secret Invasion in the back half of its hypothetical season 6 after Captain Marvel debuts in March of 2019.

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Assuming Agents of S.H.I.E.L.D. can last for at least another season, the precedent and setting is there for the show to tackle Secret Invasion. With all the characters and plots the films have to choose from, there's no guarantee something as far-reaching as Secret Invasion could make its way to the big screen. But Agents of S.H.I.E.L.D. has proven its the perfect platform to introduce the Skrulls and give life to their most famous story arc from the comics.

NEXT: Agents of S.H.I.E.L.D. Season 4 Recap

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