1st printing. Collects Avengers Assemble (2012-2014) #9-13 and Avengers Assemble (2012-2014) Annual #1.

Written by Kelly Sue DeConnick, and Christos N. Gage. Art by Stefano Caselli, Pete Woods, Mark Bagley, Tomm Coker, Mike Deodato, Mike Mayhew, Luke Ross, Valentine De Landro and Scott Hanna. Cover by Steve McNiven.

Two scientists, two giant egos. One wears a tank - one is a tank. Tony Stark and Bruce Banner are science bros! And when a fellow big-brain goes missing, the two heroes take bets who can find him first!

It's Amazing Race, Avengers-style, as Iron Man and Hulk embark on a global manhunt with the ultimate prize at stake: bragging rights! But what happens when a 20-million-year-old evolutionary catalyst infects the Hulk? The Avengers must find the missing scientist before he and his Order of the Dragon unleash his bacteria on the entire world!

Then: The Black Widow's sins have resurfaced! Widow, Spider-Woman and Hawkeye travel to Siberia to search for a missing girl with ties to an old Soviet assassination. But the truth behind the girl's disappearance may be more than the Avengers are prepared to handle!

Plus: a major turning point in the life of the android Avenger known as the Vision!

Softcover, 144 pages, full color.