This is the first in a series of 6 collections of comics that attempt to bridge the gap between the '28 Days Later' and '28 Weeks Later' films. I haven't read the other issues (yet) so I don't know if there are further books planned.
The story follows Selena from the original film, after she is approached in a refugee camp in Norway by a team of journalists. They want to go to the UK and explore infected territory, beyond the area protected by the US/NATO military (as shown in '28 Days Later') and want her to act as a guide. As you might expect, this turns out to be a bad idea.
This book is clearly the first part of a series as there is a natural break in the story at the end, but it certainly isn't a conclusion. The story is good and made me keep turning the pages, and the artwork is adequate. I particularly liked the way that Selena's backstory is developed, and the way in which the universe shown in the films is expanded. This is a much better attempt than the graphic novel '28 Days Later: The Aftermath', and I'll probably be buying the other 5 issues on the strength of the first one.