Marvel Dawn/Avengers Assemble!

Avengers Assemble! is a comic book published by Marvel Comics under their Marvel Dawn initiative. As the name implies, the series is Marvel Dawn's Avengers ongoing series, following an ever-changing roster of superheroes that defend the planet.

Synopsis
The series follows a group of superheroes known as the Avengers, also referred to as "Earth's Mightiest Heroes", who defend the planet against any threat that faces it, ranging from alien invaders, to magical beasts, to people hellbent on world domination.

Current Roster

 * Steven "Steve" Rogers/Captain America - the fearless leader of the Avengers who is a former soldier from World War II that was frozen in ice and thawed out in modern day. Steve has a formula known as the Super-Soldier Serum pumping through his blood, granting him many incredibly abilities. He also wields a round shield that he can throw as a weapon.
 * Anthony "Tony" Stark/Iron Man - the co-leader and second-in-command of the Avengers as well as their benefactor who is the CEO of Stark Industries. Tony is somewhat egotistical and is kept alive by an artificial heart known as the Arc Reactor. He is also a genius inventor that is constantly creating devices known as the Iron Man Armors.
 * Bruce Banner/The Hulk - a genius scientist who was accidentally bombarded with Gamma Radiation, giving him an immensely powerful split-personality known as the Hulk which is so dangerous that both Bruce and Hulk are being hunted by the government. While the Hulk is seen as a monster, he's mostly misunderstood and simply wants to be left alone.
 * Thor Odinson - the son of All-Father Odin, ruler of Asgard, and the god of thunder and lightning who has a very old-fashioned way of talking and is one of very few people who can wield the hammer Mjolnir, which is one of the most dangerous weapons in the universe. Thor is incredibly joyful and loves battling alongside his friends.
 * Henry "Hank" Pym/Ant-Man - one of the smartest men alive whose science borders on magic. Hank is constantly looking for a way to make the world better, whether by redeeming villains or fighting threats himself. He is also the inventor of the Pym Particles, which allow Hank to shrink and grow at will, and wears a helmet that lets him communicate with ants.
 * Janet Van Dyne/Wasp - Hank's girlfriend and lab partner who genuinely loves being a superhero and will take any chance she can get to do hero work and her outgoing and talkative personality contrasts Hank's quiet one perfectly. Like Hank, she has access to Pym Particles, though they only let her shrink, and wears a pair of bio-synthetic wings as well a glove that fire concussive blasts.

Supporting

 * S.H.I.E.L.D., consisting of:
 * Nicholas "Nick" Fury, Jr. - the director of the government group S.H.I.E.L.D. and one of the people who helped assemble the Avengers. Nick is a man with a strong sense of justice and will do anything in his power to help Earth, even if it means he'll have to make enemies with a lot of people.
 * Maria Hill - the second-in-command of S.H.I.E.L.D. who is a far more stern and morally grey person than Fury, though she believes in Fury's ideologies more than even Fury himself. Maria is a very polarizing figure and most of the Avengers have a complicated relationship with her.
 * Sharon Carter/Agent 13 - the grandniece of Captain America's former lover, Peggy, who took over her grandaunt's title as Agent 13 for S.H.I.E.L.D. She is an impeccably skilled fighter, able to keep up with the very best, and is somewhat snarky but gets very serious when she needs to.
 * Natasha Romanoff/Natalie Roth/Black Widow - TBD
 * Clinton "Clint" Barton/Hawkeye - TBD
 * Clay Quartermain - TBD
 * Agents of Atlas, consisting of:
 * James "Jimmy" Woo - the leader of the S.H.I.E.L.D. branch, Agents of Atlas, who is an incredibly intelligent Asian-American spy that has been trusted to deal with and apprehend supervillain threats all across the world. He is very serious with his team and is an incredibly good leader but enjoys getting on his enemies' nerves.
 * M-11/The Human Robot - TBD
 * Robert "Bob" Grayson/Uranian - TBD
 * Kenneth Hale/Gorilla-Man - TBD
 * Venus - TBD
 * Aquaria Neptunia/Namora - TBD
 * Howling Commandos, consisting of:
 * Timothy "Dum Dum" Dugan - the leader of the S.H.I.E.L.D. group, the Howling Commandos. Dugan is somewhat slow-witted but makes up for it with his incredible courage and willingness to put himself on the line for others. He, along with the other Commandos, has been assigned to deal with supernatural and magical threats.
 * The Creature/Frank - TBD
 * Dr. Theodore Sallis/Man-Thing - TBD
 * Vic Marcus/Warwolf - TBD
 * N'Kantu/The Living Mummy - TBD
 * Margaret "Peggy" Carter - TBD
 * James "Bucky" Barnes/Winter Soldier - TBD
 * Virginia "Pepper" Potts - TBD
 * Harold "Happy" Hogan - TBD
 * James "Rhodey" Rhodes/War Machine - TBD
 * Edwin Jarvis - TBD
 * Elizabeth "Betty" Ross - TBD
 * Richard "Rick" Jones - TBD
 * Gen. Thaddeus "Thunderbolt" Ross/Red Hulk - TBD
 * Col. Glenn Talbot - TBD
 * Odin Borson - TBD
 * Freyja Freyrdottir - TBD
 * Lady Sif - TBD
 * Balder Odinson - TBD
 * Warriors Three, consisting of:
 * Volstagg the Voluminous - TBD
 * Fendral the Dashing - TBD
 * Hogun the Grim - TBD
 * Jane Foster - TBD

Antagonists

 * Hydra, consisting of:
 * Johann Schmidt/Red Skull - TBD
 * Baron Wolfgang von Strucker - TBD
 * Ophelia Sarkissian/Madam Hydra - TBD
 * The Hive - TBD
 * Jacob "Jake" Fury/Kraken - TBD
 * Loki Leufeyson - TBD
 * The Masters, consisting of:
 * Baron Helmut Zemo - TBD
 * Dr. Chen Lu/Radioactive Man - TBD
 * Ivan Vanko/Crimson Dynamo - TBD
 * Robert Hunter/Nitro - TBD
 * Nathan Garett/Black Knight - TBD
 * Mary MacPherran/Titania - TBD

Issues

 * 1) The Living Legend - In the year 1944, Captain America and his sidekick Bucky go on what is quite possibly their last mission against the infamous Nazi commander, the Red Skull. At the end of the story, Cap is found frozen in ice and unthawed by S.H.I.E.L.D.
 * 2) Iron, Forged In Steel - After Captain America goes into denial about his new surroundings and goes missing looking for Bucky, S.H.I.E.L.D. decides to hire Tony Stark, AKA Iron Man, to either bring him back to reality or capture him.
 * 3) Tales to Astonish - Hank Pym and his girlfriend, Janet, return to America after studying in the island nation Wakanda in order to take samples of Cap's blood and replicate the Super-Soldier Serum. However, Hank begins questioning this choice after a conversation with Cap.
 * 4) Thunder and Lightning - In the realm of Asgard, Thor Odinson is ready to be crowned the official protector of the Nine Realms by his father, Odin. However, before he can, Thor's evil foster brother, Loki, attacks with a small army of Frost Giants.
 * 5) Man Or Monster - After discovering that Bruce Banner, AKA, The Hulk's location, Thaddeus "Thunderbolt" Ross hires Nick Fury to help him capture Banner. Meanwhile, Tony Stark has to deal with the now powerless Thor, who has crash landed on Earth after an argument with his father.