Captain America & Black Widow (2013)

Collects Captain America and Black Widow (2004-2011) #636-640.
Captain America and the Black Widow are on a deadly collision course, as Kashmir Venemma and her multiversal corporation have sent them on a wild goose chase through countless worlds. Chased by a superpowered kill squad, Cap and Widow jaunt through the multiverse, battle corporate-sponsored alien war machines and face...Lizard-Ock!? But as the two Avengers battle ever closer to their goal, the stage is set for a final assault against Venemma Multiversal! Guest-starring Hawkeye, Iron Man, and...Dr. Doom?