Avengers: Behind the Uniform

Bruce Banner has gone off the radar, Tony Stark has retired to the country with Pepper, Thor has returned to Asgard, Clint Barton has retreated back to his family and the world believes that they are safe once more. But where peace reigns, chaos is lurking underneath the surface.

There is a new enemy, operating undiscovered for over three decades and they have finally perfected the one thing that required such discrepancy: an air-borne serum which carries the power of ISO-8 and secures the minds of all who breathe it in. But their adversary always seems two steps in front of the Avengers and the king of the game they think they've been playing may be only a pawn.

With the whole universe turned against them, the new Avengers face their toughest enemies yet. Billions of innocents, a maniacal genius who will stop at nothing to conquer the Avengers and, deadliest of all, themselves. Amongst all this, can the two remaining original Avengers find comfort in each other?

Can they find something more?

*DISCLAIMER: This starts after Marvel Cinematic Universe's Age of Ultron but also includes parts of the Comic Universe*