Table of Contents

Secret Invasion

Part 1: The Dossier: An At-a-Glance Summary

Part 2: Origin and Evolution

Publication History and Creation

The Secret Invasion storyline was a crossover event published by Marvel Comics in 2008. The core story was told in an eight-issue limited series of the same name, written by Brian Michael Bendis with art by Leinil Francis Yu. However, the event's foundation was meticulously laid years in advance, primarily within the pages of New Avengers, also penned by Bendis. This long-form storytelling approach created a slow-burn narrative, planting seeds and clues that retroactively became part of the invasion's lore. The first major hint of the impending invasion came at the end of the Kree-Skrull War storyline in New Avengers #31 (2007) with the revelation that Elektra was a Skrull imposter. The event officially kicked off with Secret Invasion #1 in June 2008 and ran through January 2009, with numerous tie-in issues across Marvel's publishing line expanding the scope of the infiltration. Conceived in a post-9/11 world, the story's themes resonated deeply with contemporary anxieties about “sleeper cells,” homeland security, and the erosion of trust in institutions. It was a direct narrative successor to a series of destabilizing Marvel events, including avengers_disassembled, house_of_m, and particularly civil_war, which had already left the superhero community broken and suspicious of one another, creating the perfect environment for the Skrulls to exploit.

In-Universe Origin Story

The catalyst and execution of the Secret Invasion differ drastically between the comics and the MCU, representing one of the most significant divergences in adaptation for a major Marvel event.

Earth-616 (Prime Comic Universe)

The Skrulls' plan for Earth was born from desperation, prophecy, and revenge. Their troubles began when the illuminati—a secret council of Marvel's most powerful minds including iron_man_tony_stark, reed_richards, doctor_strange, black_bolt, professor_x, and namor—traveled to the Skrull Throneworld to issue a warning to stay away from Earth. Their show of force backfired; they were captured and experimented on, allowing the Skrulls to gain critical biological data on Earth's metahumans and the genetic keys to becoming undetectable. The final push came when galactus, Devourer of Worlds, consumed the Skrull Throneworld, Tarnax IV. This apocalyptic event shattered their empire and scattered its survivors across the galaxy. In this chaos, a religious prophecy gained traction: it foretold that Earth was destined to be their new homeland. This prophecy was championed by the zealous Princess Veranke, who was exiled for her fundamentalist beliefs but was later elevated to Empress after the Throneworld's destruction. Under Empress Veranke's command, the Skrulls initiated a multi-generational plan. They leveraged the data stolen from the Illuminati and combined it with arcane magic to create a new generation of “Super-Skrulls” and infiltrators who were completely undetectable by telepathy, magic, or even wolverine's heightened senses. They were not just mimicking appearance; they were absorbing the memories and consciousness of their targets, making the imposters believe they were the person they replaced. The infiltration began years before the invasion was made public, with agents replacing key figures at every level of power to slowly dismantle Earth's defenses from the inside out. Their goal was not just conquest, but a holy war to claim their promised land.

Marvel Cinematic Universe (MCU)

The MCU's version of the Skrulls, introduced in Captain Marvel (2019), reimagined them not as a conquering empire but as a race of refugees fleeing genocide at the hands of the Kree. A young nick_fury and captain_marvel_carol_danvers helped a faction of them, led by Talos, find temporary refuge on Earth in the 1990s, promising to find them a new homeworld. The Secret Invasion Disney+ series (2023) is set over 30 years later in the post-Blip world. The promise of a new home has gone unfulfilled. A radicalized splinter group of Skrulls, led by the charismatic and ruthless Gravik, has lost faith in Fury's promises. This faction believes that humanity is too self-destructive to deserve its own planet and that the Skrulls should simply take Earth for themselves. Unlike the comic's grand, imperialistic holy war, the MCU's invasion is a covert insurgency. Gravik's plan is not to replace superheroes (who are mostly off-world or unaccounted for post-Endgame), but to replace key political and military figures to incite a global war between the United States and Russia. By triggering a human-led nuclear holocaust, they intend to make the planet uninhabitable for humans but survivable for Skrulls, who possess radiation resistance. Their infiltration is smaller, more targeted, and driven by a sense of betrayal and desperation rather than religious prophecy. They utilize a machine to extract and implant memories, but the focus remains on espionage and political destabilization, a far cry from the superhuman-centric conflict of the comics.

Part 3: Timeline, Key Turning Points & Aftermath

The execution and consequences of the Secret Invasion in both universes showcase their distinct narrative priorities: one a superhero epic, the other a political thriller.

Earth-616 (Prime Comic Universe)

The comic book event was a masterclass in escalating paranoia, culminating in a global war.

The Infiltration Method

The Skrull infiltration was terrifyingly perfect. Their agents were not mere duplicates; they were sleeper agents who had the complete memories, personality, and even powers of the originals. They could fool telepaths like Professor X, mystics like Doctor Strange, and keen senses like Wolverine's. This created an atmosphere where no one could be trusted. A character could have been a Skrull for years without anyone knowing.

Confirmed Skrull Infiltrators (Notable List)
Replaced Hero/Villain Skrull Agent's Name/Alias Key Actions as Imposter
spider-woman_jessica_drew Empress Veranke Acted as a double agent within both S.H.I.E.L.D. and Hydra; infiltrated the New Avengers.
hank_pym Criti Noll Provided fellow heroes with a “Skrull-killing” virus that was actually designed to turn them into Skrulls; became a key leader in The Initiative.
elektra_natchios Siri Led The Hand; her death and reversion to Skrull form was the public's first hard evidence of the invasion.
Black Bolt Unnamed Skrull Replaced long before the event, his capture allowed the Skrulls to study and weaponize the Terrigen Mists.
captain_marvel_mar-vell Khn'nr A sleeper agent whose programming failed; he developed Mar-Vell's true personality and died a hero fighting his own people.
jarvis_edwin Unnamed Skrull Infiltrated Avengers Tower, downloading data on all heroes and planting a virus that disabled Tony Stark's technology.
Dum Dum Dugan Unnamed Skrull Infiltrated S.H.I.E.L.D. and later replaced the head of S.W.O.R.D.

Key Turning Points

The Climax and Immediate Aftermath

The invasion ends when Norman Osborn, live on global television, lands the killing shot on Empress Veranke. This singular act transforms him from a villain into a public hero overnight. The world saw a former “reformed” villain succeed where the established heroes had seemingly failed. This public perception became the event's most devastating consequence. The President of the United States, disillusioned with S.H.I.E.L.D. and Tony Stark, dissolves the organization. He hands the keys to global security over to Norman Osborn, who rebrands the organization as H.A.M.M.E.R. and forms his own team of “Dark Avengers,” consisting of villains posing as heroes. This kicked off the dark_reign era, a period where the villains were in charge, hunting heroes who refused to register with their corrupt regime. The trust between heroes, and between the public and its heroes, was shattered for years to come.

Marvel Cinematic Universe (MCU)

The MCU's invasion was a more intimate, street-level conflict focused on espionage and political maneuvering.

The Infiltration Method

Gravik's faction used a machine to painfully extract memories from human hosts, which were then implanted into Skrull agents. While effective, it was a more brute-force method than the comics' seamless biological integration. The primary targets were not superheroes but high-level political, military, and intelligence operatives who could manipulate global events from the shadows.

Key Turning Points

The Climax and Immediate Aftermath

The conflict culminates in a confrontation at the Super-Skrull facility. G'iah, Talos's daughter who had secretly undergone the Super-Skrull process herself using a hidden cache of Avenger DNA known as “The Harvest,” battles and kills Gravik. Meanwhile, Nick Fury foils the assassination plot and exposes Raava. However, a panicked and paranoid President Ritson, having survived the ordeal, makes a televised address declaring all extraterrestrial species on Earth as enemy combatants, inciting a wave of violent vigilantism against Skrulls and a new era of global xenophobia. The series ends not with a villain's rise to power, but with a new, dangerous political reality where Skrulls are hunted, setting the stage for future conflicts and establishing a peace-keeping alliance between G'iah, now leader of the surviving Skrulls, and MI6's Sonya Falsworth.

Part 4: Key Players & Factions

The Skrull Empire (Earth-616)

Gravik's Insurgency (MCU)

Earth's Resistance (Earth-616)

Earth's Resistance (MCU)

Part 5: The Aftermath: A Changed Universe

The conclusion of Secret Invasion in both mediums permanently altered the status quo, but in fundamentally different ways.

Earth-616: The Dark Reign

The comic's aftermath was a paradigm shift for the entire Marvel Universe. Norman Osborn's public execution of the Skrull Queen was the single most impactful event.

MCU: A New Cold War

The MCU series ended not with a new power structure, but with a new global political reality defined by xenophobia and paranoia.

Part 6: Variants and Alternative Versions

See Also

Notes and Trivia

1) 2) 3) 4) 5) 6)

1)
The groundwork for Secret Invasion was laid as early as New Avengers #1 in 2005. Writer Brian Michael Bendis has stated he had the ending planned from the very beginning of the series.
2)
The choice of which characters were revealed as Skrulls was often controversial. The replacement of Hank Pym was particularly notable, as it occurred during the height of his redemption arc following the events of Civil War.
3)
The phrase “He loves you,” spoken by Skrull agents to one another, was a key religious mantra tied to their prophecy, but it was also designed to further confuse and disorient their human opponents.
4)
The MCU adaptation's focus on a Skrull insurgency and political thriller elements was likely a practical decision due to the MCU's status post-Endgame, with many of the major heroes who were central to the comic event being either dead, retired, or off-world.
5)
The “Harvest” in the MCU refers to the collection of DNA from all the super-powered individuals who fought in the Battle of Earth during Avengers: Endgame, gathered by Skrulls disguised as cleanup crew.
6)
The revelation that James Rhodes was a Skrull in the MCU has led to intense fan debate about when he was replaced, with speculation ranging from post-Civil War to after Endgame.