The zombie apocalypse has become something resembling routine. You and your best friend fall asleep beneath the stars after another day survived. In the middle of the night, an eerie silence jars you awake. You scan the area — everything looks normal. Then you look to where your friend was sleeping. He is gone. A chilling croak echoes from the direction of the old castle, where the undead feast on frogs, their preferred delicacy. You have to go after him.