A mysterious group come through an anomaly in a theatre, unknowingly followed by deadly tree creatures. As they attempt to escape, Matt inadvertently brings one of the group - Emily - back against her will. She promises to help him find the creature, in return for going back through the anomaly. In a frantic chase through the city, they track the creature down, only to discover the anomaly has closed, leaving Emily stranded.

Abby and Connor travel to coastal Witchfield Cove,home to the legendary giant worm,after the death of a camper. They find the worm is no myth but a Labyrinthodont,come through a portal in a cave,accidentally opened by a farmer and her son,tipping waste acids. After its disposal Connor accepts a role in Burton's secret project. Matt traces Emily via the black box he has given her and saves her from being buried in a vault,the former burial place of Ethan's sweetheart Charlotte. However Ethan escapes .