City kid Corbett "Griffy" Griffith III can't wait for summer vacation to begin. The twelve-year-old's annual trip to his uncle's fishing resort promises more than adventure and mischief this time around. It offers Griffy a much-needed break from his mom's new boyfriend in Chicago. When a vicious snakehead fish is caught in Lost Land Lake, the summer takes a sudden and disastrous turn. Strange events lead Griffy to one disappointment after another. He and Pike must unravel a mystery that pits them against a trusted friend and an invasive species fierce enough to ruin the lake and the livelihood of everyone on it. Can Griffy and Pike save Lost Land Lake before it's too late?