Eric Carter, Mark Bruder, and Shayleen Mills, three friends in Murfreesboro, Tennessee, find their lives in danger when they decide to investigate strange occurrences at a new toy store, only to find that the toys have been watching them too.
Chad Prescott and his sister Michelle discover that gigantic monsters are living beneath the waters off the coast of South Carolina and must try to destroy them before they take over Dewees Island.
Shayleen Mills finds herself struggling for survival when her family vacation at the seaside resort of Wildwood, New Jersey, is interrupted by the arrival of hostile, glowing jellyfish.
Now living in Bismarck, North Dakota, Damon Richards, with his friends Kamryn and Jason, find themselves in an unwanted but unavoidable fight against fire-breathing night dragons.
When Amber, Courtney, and Scott investigate the Missouri Madhouse, they find themselves trapped in a dangerous world, and only a mysterious boy can show them how to return to Missouri.