Giant eels have invaded the Jersey Shore town where 12-year-old Liam is spending the summer at Gramps's cottage. The eels chew up postcards in mailboxes, get into Mom's paints, and cause traffic accidents. No one knows why the eels are so enormous, or how to stop them from crawling everywhere. Some answers could lie in the journals Gramps left behind before he died last fall. Does it have to do with the local power plant? Will the stubborn town leaders listen to a couple of kids? Liam and his new friend Ceila set out to crack the mystery of the giant eels, but one wrong step could get them into a world of trouble.