A late-night conversation leads to a crisis of conscience and a terrifying realization.

Dawn has yet to break, but for Robyn, Wren and Mila, nothing will ever be the same again.

Before night falls, they will need to battle time, terrain, their enemies, and the infected.

Today, they will be tested to their physical and mental limits.

Today, they will sacrifice more than they ever have.

Today will change everything…forever.