This issue contained two Dick Ayers pencilled Sgt. Fury stories, one reprint from #11 and one new story about D-Day. The Kirby content is a quick reprint of the first SHIELD story from STRANGE TALES #135 (1965), just a year after it was first published.
It's a great origin story, a very tight 12-pages of Kirby/Ayers art which establishes the now Colonel Fury as he's recruited to lead the international law enforcement efforts against the forces of Hydra. Although having his doubts about his own qualifications given the super-science realm and international scope of SHIELD, he quickly proves himself by foiling a sabotage attempt and taking charge in the confusion.
Lots of the key elements of the series are introduced, like the Life Model Decoys, the cool air-car (with the flipped tires), the Helicarrier and of course Hydra! Immortal Hydra! Cut off a limb and two more shall take its place! Man, I always love that Hyrdra salute, especially with the visual.
I also always liked that Tony Stark shows up in here, but with absolutely no reference to Iron Man. That works well to establish the series firmly in the Marvel Universe, but sort of off to one side, where it works best (while Fury also works well as a supporting character in other books).