It was reveled this last week at Comic-Con during the Captain America panel that the story's antagonist Red Skull played by Hugo Weaving works for both the Nazi party and the HYDRA organization.
During a recent interview with Entertainment Weekly, the director of the film Joe Johnston held up his phone to reveal the first official logo of HYDRA., and unsurprisingly it looks a hell of a lot like the logo we already have seen in the comics.
Here is a little background info on the HYDRA oganization:
Hydra is a world-wide subversive organization dedicated to global domination. At its height, Hydra was the most extensive, powerful, and dangerous such organization in history. Hydra is almost entirely composed of men, with some notable exceptions, such as former member Lara Brown, the daughter of a Supreme Hydra, and so-called Madame Hydra, who later became known as the Viper. Hydra agents wear green costumes with cowls concealing the entire head except for the mouth and chin. Their organization takes its name from the many-headed serpent-like monster known for its ability to grow two heads immediately to replace any head that was severed. Hydra prides itself on its ability to regroup and rebuild itself, allegedly mightier than before, after any major defeat. Indeed, the organization has now endured for four decades.
For more of a detailed background on Hydra click here.