Appearing in "-- Today the Avengers Die!"
Featured Characters:
- Avengers (Main story and recap)
Iron Man (Tony Stark) 
(Main story and recap)- Captain America (Steve Rogers)
- Thor (Odinson)
- Henry Pym
- Wonder Man (Simon Williams)
- Beast (Hank McCoy)
- Hawkeye (Clint Barton)
- Scarlet Witch (Wanda Maximoff)
- Vision (Main story and recap)
Supporting Characters:
- National Security Council
- Henry Peter Gyrich
- Marsden (Voice)
- Edwin Jarvis
Antagonists:
- Project Tomorrow (First appearance) (Main story and flashback)
- Arsenal Beta (Origin revealed) (Death)
- Mistress (First appearance) (Apparent death)
- Unnamed Allied scientists (Only in flashback)
Other Characters:
- Wasp (Janet Van Dyne) (Mentioned)
- Kang (Mentioned)
- Ultron (Mentioned)
- Ms. Marvel (Carol Danvers) (Mentioned)
- Falcon (Sam Wilson) (Mentioned)
- Robin Hood (Robert Locksley) (Mentioned)
- Dr. Singer
- Secretary Vance (Mentioned)
- Nazis (Mentioned)
- Howard Stark (On-screen) (Only in flashback)
- Battlestar Galactica (Referenced) (Topical reference)
- S.H.I.E.L.D. (Mentioned)
- Odin (Invoked)
- Maria Stark (Mentioned)
Races and Species:
- Robots (Main story and flashback)
- Humans (Main story and flashback)
- Asgardians
- Mutants
- Synthezoids (Main story and recap)
Locations:
- New York State
- New York City
- Manhattan
- Avengers Mansion
- Facilities below the Mansion
- Central Park
- Avengers Mansion
- Manhattan
- New York City
- Washington, D.C. (Main story and flashback)
Items:
- Mjolnir
- Captain America's Shield
- Captain America's Uniform
- Hawkeye's Suit
- Hawkeye's Bow
- Trick Arrows
- Iron Man Armor MK V (Main story and recap)
Vehicles:
Events:
- World War II (Mentioned)
- Cold War (Mentioned)
Synopsis for "-- Today the Avengers Die!"
The Avengers meet to discuss the threat of Arsenal. Exploring, Hawkeye and the Beast discover a hidden complex beneath Avengers Mansion, even as their teammates learn that Arsenal has been discovered to be a forgotten secret weapon developed during World War II by Project Tomorrow, which was headed by Tony Stark's industrialist father. The project was located beneath the Stark family townhouse, now Avengers Mansion, where a newly repaired Arsenal has now captured Hawkeye and the Beast, whom it believes to be Axis agents. Invading the underground base, the Avengers battle both Arsenal and Mistress, the computer guiding its actions, until Iron Man reaches the inner computer chamber and frees the two captives. He then informs Mistress that the war is over and that Howard Stark is dead. The computer, its personality based on Maria Stark's brain patterns, self-destructs, even as Thor and the Scarlet Witch finally defeat the robot.
Notes
- This issue contains two chapters:
- Chapter I: -- Today the Avengers Die
- Chapter II: Something Deadly Lurks Below!
- This story is continued from Iron Man #114.
