Ben Banister is eleven years old now and ready for adventure All his life the dark woods across the swamp from his house have terrified him, but not anymore. Together with his teenage sister, Nixi, and his best friend, Pudge, Ben is determined to conquer his childhood fears and discover the mysteries of the woods. The only problem is that none of them are prepared for what they find: a massive stone wall that separates their world from another dimension. One small crack and they inadvertently unleash a squiggly green monster that shrinks in the sunlight and grows in the darkness. Now it's a race against time to capture the little brute and keep it in the light before the sun goes down. But little do they know that the hole in the wall is getting bigger, spewing forth a cloud of unnatural darkness that quickly begins covering the Earth Together they'll have to use brains, bravery, and a whole lot of flashlight batteries to fight their way back to the wall, seal the hole, and save the planet before it becomes overrun by the monstrous Dwellers of the Dark.