This theme is made out of The Avengers movie released in April 2012. 7 sets is gonna be released. Set numbers is nr. 8958-8964.
Minifigures:
Iron Man
Captain America
Hulk (8958)
Thor
Black Widow (8958)
Hawkeye
Loki
Nick Fury
Alien Soldier
Alien Pilot
Erik Selvig
Phil Coulson
Sets:
8958 Recruiting Hulk