Save the World with a Zombie’s Song

After a virus turns most people into zombies, Liza is one of the survivors. She saves Adam when she is finding some resources. What they need to do is to escape from the zombies and be back in the safe zone. During the escape, the zombies turn to humans because of Liza’s ringtone. Finally, Liza and Adam use the song to save the world.
(Source: Viddsee)