On a hot July day on the plains of Kansas, a US Army mechanized infantry company from the First Infantry Division gets a very vague warning order, and the young troopers saddle up on their steel beasts to go try to control "civil unrest".

This audiobook contains the first four audiobooks of the Tide series, filled with post-apocalyptic action, suspense, and intrigue. A devastating bioweapon will change the face and fate of humanity as we know it.     

In Boston, a battalion of light infantry struggles to maintain order as a new disease turns people into sadistic, laughing killers. As the numbers of infected grow, the battalion loses control, and the soldiers find themselves fighting for their lives against the very people they once swore an oath to protect. During the ensuing collapse, the lost battalion learns the Army is still holding out in Florida, which has been cleared of the infected. Harry Lee, its commander, decides the only hope for his men is to get there.

When a viral apocalypse kills 97 percent of the people on the planet, the survivors' humanity is hanging by a thread. Amid the leftovers of civilization, ex-Army Ranger Jason Larsen is reminded of the meaning of hope, family, and loyalty by a dog and a young boy who are as alone as he is. The survivors he seems to collect become family, and that is very bad news for those who think they run the apocalypse.

Army veteran Lee Riker is staying in an Atlanta shelter and supporting himself with the odd carpentry job when his sister, Tara, summons him home to Indiana for the reading of their mother’s will. Riker boards a Greyhound bus in Atlanta with his duffel bag, less than $200 to his name, and a secret he must protect at all costs. Riker makes it to Middletown only to learn his sister has recently witnessed a gruesome death. Insisting she saw the victim rise from a pool of his own blood to attack the Samaritan rendering aid, Tara floats the idea that the man may have been a zombie.