A musical machinima using the Source Filmmaker tool set; 'Darkest Days' tells the story of two brothers and young daughter as they escape a city filled with the undead. Featuring bands of the genre of heavy metal and hardcore; such as 'Slipknot', 'Killswitch Engage', and 'Avenged Sevenfold', characters sing their way in hope of freedom from the plague of the undead forces.—Anonymous