Dr. Doom has formed a new Masters of Evil in order to steal Odin's power. They then launch an attack on a S.H.I.E.L.D. hellicarrier. Nick Fury sends out a distress call to all avaliable meta-humans. Captain America, Thor, Spider-Man, and Wolverine respond and proceed to eliminate Doom's forces. The heroes then travel to various locations in order to stop Doom's plan and, of course, save the world.
- Roger Craig Smith - Captain America
- Travis Willingham - Thor
- Josh Keaton - Spider-Man
- Steve Blum - Wolverine, Vemon, Rhino, Daredevil, Iron Man, Lizard
- Nolan North - Deadpool, Colossus, Cyclops, Ghost Rider
- Dee Bradlry Baker - Mr. Fantastic, Nightcrawler
- Tara Strong - Invisible Woman, Elektra, Namorita
- David Kaufman - Human Torch
- Clancy Brown - The Thing, Tiger Shark, Apocalypse
- Dawnn Lewis - Storm
- Yurl Lowenthal - Iceman, Moon Knight
- Phil LaMarr - Black Panther
- Khary Payton - Blade, Luke Cage
- Bryce Johnson - Doctor Strange
- Jennifer Hale - Ms. Marvel, Jean Grey, Spider-Woman
- David Kaye - Nick Fury, Professor X
- Mikey Kelley - Sliver Surfer
- Troy Baker - Hawkeye, Loki
- Fred Tatasciore - Hulk
- John DiMaggio - Namor, Galactus
- Kevin Corvey - The Vision
- Laura Bailey - Black Widow
- Wally Wingert - Hank Pym
- Maurice LaMarche - Dr. Doom
- Tom Kane - Magneto, Ultron
- Jeff Bennett - Arcade, Captain Marvel, Thanos
- Jess Facon - MODOK
The Battle Begins: Nick Fury calls Captain America, Thor, Spider-Man and Wolverine to defead the Heilcarrier from a team of villans.
A Team is Born: A audition for the line up for the team is turned into a mission when Ultron attacks Stark Tower.
Hot Iron: The Omega Base is underattack by Crimson Dynamo, Mysterio and MODOK. Can the team prevent the Omega Base from crashing in to a dam and launching several gamma bombs.
Imperious Rex: Namor's enemy, Atuma, used technology from the Masters of Evil to turn the Atlatians against him. The Invisible Woman and Namorita as mermaids, must save Namor and Atlantis from Atuma.
The Final Battle Part 1: Dr. Doom opened a potal to Flip City and meets Vertex. With the help from MODOK and Vett, they launch a major assault on the FCPD to claim the last artifact and take over the city. The heroes of two worlds must team-up to stop the invastion. Meanwhile, Spin works to uncover the truth about his past and to figure out what Vertex's plan is.
The Final Battle Part 2: With the final artifact finally in Doom and Vertex's reach, it's up to Spin, Penny, Captain America and all of the two worlds to stop Flip City from falling. Spin also discovers his tribe's name and information about his past.