Mallins Wood is under threat, and with it the home of the last remaining gorgon - a mythical creature that can kill with a look. Only a handful of people know that she still exists. Col and his mother are among them, and both are determined to save her, and the forest. While Col tries to rally support amongst the locals, his mum is hatching a more deadly plan. Egged on by the evil shapeshifter Kullervo, she is ready to sacrifice Col's best friend, Connie, to protect the gorgon. But first she needs Col to lure Connie to the gorgon's lair...