In Book 2, Acceptable Losses, the reader is given a more in-depth look at other characters besides the Outlaws of ODA-141 and the SEALs of Shark Platoon.
The story opens with what's happening in Tenino and to James Martin and his friends. We meet Michelle Jones, the former girlfriend to the mayor's son. Rocky Marcone, the owner of a store in Tenino that Martin was shopping at in Book 1 when infection hit the small town, and more of the Z-Corps group.
Mecceloni and Cassie have left Las Vegas and are heading north. Durst, Stone and Sharon, Frank's sister are now heading for Stone's salvage yard. Durst is having an issue with Stone's actions regarding Sharon's neighbors who were all infected but before he can express much more, the news shows that it wasn't just their location that was having problems.
Shortly after that conversation, infected arrive at the salvage yard but so do Mecceloni and Cassie.
There is a follow up on Sergeant Hathaway from Book 1 and we now see what he's been doing since then. New characters introduced are Jim 'Jimbo' Morrisey, his stepsister, Melody, and Warren Bergeron, all in Idaho Falls.
Jack Larkin in the UK has an encounter with an infected and he along with Arthur Higgins and Leesa Tobias realize that something is definitely wrong.
Nathan Conley and Robert Foster have words and the outcome is not pleasant.
The survivors from Joint Base Lewis/McChord have now reached Objective Green and are coordinating an evacuation of all remaining uninfected civilians.
A new faction is introduced that may have something to do with the release of the virus. This new group has commandeered a Continuity of Government (COG) site and launched an airstrike against some of the survivors.
Larkin, Higgins, and Tobias make a decision to leave the hotel and head to someplace that may be more safe.
Ronald Chambers and Candace Reed are safe in Chambers' home in Arizona where Chambers finds out more details about the virus from a friend.