The Avengers Origins lineup includes only Captain America, Iron Man, Thor, Hulk, Black Widow, and Hawkeye. This storyline details the formation of the Avengers and their early adventures. It also shows them taking on HYDRA, and AIM for the first time. At the final Issue of the storyline they decide that they need a bigger force in order to protect the world, and starts recruiting heroes to become Avengers, leading to the Ulimate Avengers storyline.