In a world of turmoil and villains, heroes become a necessity.
The Avengers are one such group. As a beacon of hope, they answer the call of justice.
But soon after the Battle of New York, another group takes up the role. They started out small, but soon The Defenders of the Earth are needed.
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While trying to recover stolen NASA-military technology plans, Andrea, the leader of the Defenders, discovers that there is a double agent at NASA. She's put on the task of discovering who, which proves to be more daunting than she expected.
Unbeknownst to her, however, the rest of her team is dealing with attacks against them. Now they're on the race to discover who's behind the attacks before they get out of control. In the process, they may just discover what Andrea's looking for, and a much more sinister plot than than they could have ever imagined.