Long long times ago somewhere in the 80', on planet Earth there were 2 twins who knew not only how to rock with their guitars, but also how to survive zombies attacks.
When the whole world is in danger, and the greenhouse effects are in a progressive state, entire glaciers are melting and releasing an ancient bacterium that was frozen for thousands of years, causing a global contagion that has become the world's inhabitants into murderous and bloodthirsty zombies.
100 days have passed since the first person who got infected with the mysterious Bacteria in northern Canada was discovered.
Alice and Sean are twins trying to survive in this world, they live in the west of Scotland.