TL;DR: This campaign could be pretty good, but sadly it is a heavily mangled 2d20 A!C rehash of the original version (that was statted for Cthulhu/Savage Worlds). And I write that even though I generally like the more action-oriented approach of the 2d20 rules.
The story is a hunt (and race against the nazis) for Atlantean artifacts in various locations in 1939/1940, and consists of adventures playing in Vienna, Rome, Egypt, Nepal, India, Persia, British Honduras, Greenland and Atlantis. The British Honduras chapter is new and is an expansion of the original. It is a solid pulp campaign and would get 4 out of 5 points from me.
Unfortunately, however, the book really only contains the bare bones of the plot.
While the original contained a lot of information to bring the various locations (and the atmosphere of 1939/40) to life at the gaming table, the new version doesn't include much more than "there's desert in Egypt" or "Nepal has mountains".
The great and useful background material that was included in the original has been stripped to the bare bones.
That alone is a remarkable and unnecessary impoverishment, because even and especially pulp stories would profit from the most colorful and vivid background possible.
But that's not all. In fact, in some places, important information that would have been necessary to the campaign's plot has been thrown out the window by the radical pruning of the original. (For example, among others, the different Egyptian moons).
Overall, this makes the campaign less fun to read and much more work to run. I would deduct two points for this, but since I like A!C 2d20, I give the campaign 3 out of 5 points overall.