After the heart wrenching departure of the infected Jones, the crew is ready to push forward into the darkest parts of Europe on their pilgrimage to find Angel. In between the blood-filled battles and rising tensions, their journey brings them to Birdland, home of creatures unlike anything the crew has ever seen. As the pilgrims fight their way to Angel's haven, in order to convince her to save the world, Colonel Brood has his own mandate regarding the destiny of the human race.