Captain America and Black Widow

"Captain America and the Black Widow are on a deadly collision course, sent on a wild goose chase through countless worlds by Kashmir Venemma and her multiversal corporation. Pursued by a super-powered kill squad, Cap and Widow jaunt through the multiverse, fight corporate-sponsored alien war machines and face Lizard-Ock!? And as the two Avengers struggle ever closer to their goal, the stage is set for the eye-popping, senses-snapping, jaw-dropping final battle! Guest-starring Hawkeye, Iron Man and Dr. Doom? Collecting CAPTAIN AMERICA AND BLACK WIDOW #636-640."