This is a really frustrating volume because it showed Marvel making a fairly rare mistake in the packaging of its collections. The first two issues, #11-12, complete the Prowler arc, so should have been in the previous volume. Meanwhile, at the time this book was released, Marvel was encouraging people to instead buy their nice Divided They Stand hardcover, which fit nicely into all of the Ultimate sequences ... except for Spider-Man, because it didn't have those two issues. 
 So in early 2012 if you were collecting the whole Ultimate universe you had to get UCSM 3 and Divided We Stand, and then you'd get 6 issues of overlap (or, like me, you didn't buy UCSM 3 for years afterward, never got to see the end of the Prowler arc, and became a bit alienated from the Ultimate Spider-Man comic due to the gap.) 
 Prowler (11-12). These are a good conclusion to the setup of the previous volume, and a fairly definitive moment for Miles to decide that he's a hero. Clearly, the intended finale of the first year's stories [7/10]. 
 Divided We Fall (13-18). This Spider-Man story isn't a very good Divided We Fall story. The first three issues are pure Spider-Man plot, and though they're up to Bendis' usual strengths, they have nothing to do with the nationwide problems. #16 integrates things well, but then #17-18 involve Miles in boring fights that don't advance anything: the good stuff actual happens at home. Fortunately, that all does result in a good Ultimate Spider-Man story. [7/10].