Well, there's the whole thousands of mutant-controlled energy fields inside a mystery man in a place where millions of mutants died? Sounds bad. 
Appearing in "Collective (Part 5)"
New Avengers #20
Featured Characters:
Supporting Characters:
- Magneto (Erik Magnus) (Repowered)
- Maria Hill
- Ms. Marvel (Carol Danvers)
- Daisy Johnson
- Vision (Jonas)
Antagonists:
- Collective (Michael Pointer)
- Intelligence controlling the Collective/Xorn (Kuan-Yin Xorn) (First revealed to be Xorn) (Death)
- Rem-Ram (Marcus Andrews) (Corpse, skeleton or other remains)
- thousands of other remutated corpses of Genoshans
Other Characters:
- Alpha Flight (Only in flashback)
- Sasquatch (Walter Langkowski) (Only in flashback)
- Shaman (Michael Twoyoungmen) (Only in flashback)
- Guardian (James Hudson) (Only in flashback)
- Major Mapleleaf (Louis Sadler, Jr.) (Only in flashback)
- Puck (Eugene Judd) (Only in flashback)
- X-Men (Mentioned)
Races and Species:
- Humans
- Human-Kree Hybrids
- Mutants
- Synthezoids
- Skrulls (Behind the scenes)
Locations:
Items:
- Captain America's Uniform and Shield
- Iron Spider Armor
- Extremis Armor
- Ms. Marvel's Suit
- Spider-Woman's Suit
- Wolverine's Suit
- Magneto's Helmet
Vehicles:
Synopsis for "Collective (Part 5)"
New Avengers #20
The Collective and New Avengers arrive on Genosha to see that The Collective is expelling its mutant-derived energies.
The Collective has come to seek out Magneto and proceeds to transfer itself into Magnetos body, during which it is revealed that Xorn is actually the sentient part of The Collective.
The previously buried Mutants on Genosha are reanimated as zombified versions of themselves which the New Avengers fight off.
Meanwhile, Daisy Johnson has arrived with S.H.I.E.L.D Agents and is directed by Captain America to start a pinpoint tremor in Magnetos brain to cause it to explode
This causes The Collective to exit from Magnetos body where it is trapped in a force field by Iron Man and flown into the sun by The Sentry.
In the aftermath, an unconscious Magneto is flown away by S.H.I.E.L.D's helicopter but suddenly explodes on takeoff with no signs of Magneto in the wreckage.
Magneto was writing his thoughts in a book, in the aftermath of House Of M, which SHIELD confiscates.
Later, Maria Hill stares at a screen with the words "Superhuman Registration Act" written at its bottom.
Appearing in "Family Matters: Part Three"
Young Avengers #11
Featured Characters:
Supporting Characters:
- Super-Skrull (Kl'rt) (Main story and flashback)
- New Avengers
Antagonists:
- Imperial Kree Army
- Captain Av-Rom
- Unnamed soldiers
- Skrull Army
- Captain Zr'x
- Unnamed soldiers
- Mephisto (Only on screen as a static image or video record)
Other Characters:
- Princess Anelle (Only in flashback)
- Captain Marvel (Mar-Vell) (Only in flashback)
- Rick Jones (Only in flashback)
- Dorrek VII (Mentioned)
- Mrs. Altman (Mentioned)
- Galactus (Mentioned)
- Billy Maximoff (Only on screen as a static image or video record)
- Tommy Maximoff (Only on screen as a static image or video record)
- Doctor Strange (Stephen Strange) (Only on screen as a static image or video record)
- Quicksilver (Pietro Maximoff) (Mentioned)
- R'Klll (Mentioned)
- Avengers (Only on screen as a static image or video record)
- Hulk (Bruce Banner) (Only on screen as a static image or video record)
- Scarlet Witch (Wanda Maximoff) (Only on screen as a static image or video record)
- Tigra (Greer Nelson) (Only on screen as a static image or video record)
- Ms. Marvel (Carol Danvers) (Only on screen as a static image or video record)
- Vision (Only on screen as a static image or video record)
Races and Species:
- Humans (Main story and flashback)
- Mutants
- Skrull-Kree Hybrids
- Synthezoids
- Kree (Main story and flashback)
- Skrulls (Main story and flashback)
- Human-Kree Hybrids (Only on screen as a static image or video record)
Locations:
- Milky Way
- Sol
- Earth
- United States of America
- New York
- New Jersey (Mentioned)
- Springfield (Mentioned)
- United States of America
- Earth
- Sol
- Andromeda Galaxy (Only in flashback)
Items:
- Patriot's Shield
- Hawkeye's Battle Staves, Bow, and Trick Arrows
- Kree Militia Uniforms
- Nega-Bands (Only in flashback)
- Iron Man Armor Model 29
- Spider-Woman's Suit
- Captain America's Shield
- Spider-Man's Suit and Web-Shooters
- Wolverine's Suit
Vehicles:
- Kree Warship
- Super-Skrull's Scouter Ship
- Skrull Warship
- Quinjet
Events:
- Kree-Skrull War (Only in flashback)
Synopsis for "Family Matters: Part Three"
Young Avengers #11
Having shot Kl'rt, Captain Av-Rom of the Kree Imperial Militia claims that Teddy is the son of Captain Marvel. Av-Rom explains that after Mar-Vell was captured, the Emperor's daughter, Anelle, conspired with Mar-Vell to overthrow her father, and wound up giving birth "to a half-breed." Av-Rom claims that Teddy is Kree because his father was Kree, and insists that Kree Empire|Kree Law requires Teddy to join the Imperial Milita.
Kl'rt regains consciousness and attacks Av-Rom so that Teddy can escape, but Teddy rescues Kl'rt from the Kree before the Young Avengers subdue the Militiamen. The Vision patches into the navigation system of the Kree ship and, after an argument between Kate, Patriot and Tommy, sets a course for Avengers Tower.
Wiccan attempts a spell to heal Kl'rt but fails, and the Super-Skrull explains that he had not intended to kill Teddy's "surrogate," and that he has failed in his mission to save Teddy in repayment for Mar-Vell attempting to save his life. Kl'rt explains that Mar-Vell tried to talk him into defecting from the Skrull army, but Kl'rt refused, instead enabling Mar-Vell to escape by shape-shifting into his appearance in order to distract the guards. He explains to Teddy that the Kree will use him as a weapon or kill him, and muses on the irony of being saved by the sons of Mar-Vell and the Scarlet Witch. Wiccan insists that the Scarlet Witch never had children, but Kl'rt claims that she had "twin boys...named Thomas and William."
The Vision confirms that the Scarlet Witch was at one time so desperate for children that she "unconsciously used her reality-altering powers to create twin boys...out of two lost souls" "which were later claimed by Mephisto...as his own," though the process of reabsorbing the twins' souls destroyed Mephisto because "they had been so transfigured by Wanda's magic." The twins "ceased to exist" "until recently," after the Scarlet Witch "lost control of her powers," and Wiccan theorizes that he and Tommy are, in fact, the reborn souls of the Scarlet Witch's sons, pointing out that he possesses the Scarlet Witch's powers while Tommy possesses Quicksilver's abilities. The Vision attempts to explain that he, in his former incarnation as the Scarlet Witch's husband, was Billy and Tommy's father, but the neuro-kinetic armor short-circuits when the Kree ship is attacked by a Skrull warship.
Kl'rt attempts to signal the Skrull ship, but Teddy flies out to meet the ship instead, and Billy follows him as Teddy orders the Skrull ship to cease fire. The Skrull ship is immediately attacked by a second Kree ship, and the Skrull scatter and return fire as Teddy orders both sides to stand down. The Kree and the Skrull both stop attacking as Iron Man, Sentry, Spider-Woman, Captain America, Wolverine, Luke Cage and Spider-Man arrive on the scene.
The Kree, along with the Skrull, both attempt to claim Teddy as their own, each claiming that their respective armies are entering Earth's atmosphere to prepare for a military strike against the planet. Captain America informs the Kree that Teddy will remain on Earth under the protection of the New Avengers, and a Kree officer fires at Captain America just as Patriot throws himself in front of Rogers to protect him.
Both sides attack, with the New Avengers and the Young Avengers caught in the middle.
Appearing in "The Price of Victory"
Avengers #277
Featured Characters:
- Avengers
- Thor
- Captain America (Steve Rogers) (Main story and flashback)
- Wasp (Janet Van Dyne)
- Black Knight (Dane Whitman)
- Captain Marvel (Monica Rambeau)
- Hercules (Only in flashback)
Supporting Characters:
- Edwin Jarvis (Main story and flashback)
- Doctor Druid
Antagonists:
- Masters of Evil
- Goliath (Erik Josten) (Leaves)
- Wrecking Crew (Leaves)
- Yellowjacket (Rita DeMara) (Leaves)
- Baron Zemo (Helmut Zemo) (Leaves)
- Blackout (Marcus Daniels) (Death)
- Moonstone (Karla Sofen) (Leaves)
- Fixer (Behind the scenes) (Leaves)
- Mr. Hyde (Mentioned)
- Super-Adaptoid (Behind the scenes)
Other Characters:
- Ant-Man (Scott Lang)
- Bucky Barnes (Only in flashback)
- Sarah Rogers (Photo)
- NYPD Officers
- Augustus Roman (Behind the scenes)
Locations:
Items:
Vehicles:
- Baron Zemo's ship
Synopsis for "The Price of Victory"
Avengers #277
The Avengers defeat the remaining Masters of Evil. Zemo loses control of Blackout to Dr. Druid and is forced to face Cap one-on-one. Cap beats him and the Avengers are left to pick up the pieces.