Download or read book Marvel's Avengers: Age of Ultron: Avengers Save the Day written by Marvel Press Book Group and published by Disney Electronic Content. This book was released on 2015-04-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: After storming a Hydra base in the forests of Europe, the Avengers return to New York. Just as Tony Stark, Steve Rogers, Dr. Bruce Banner, Thor, Natasha Romanoff, and Clint Barton begin to celebrate their victory, a new enemy introduces himself. Ultron is the planet's biggest threat yet!