Jon prepares for conflict; Sansa tries to talk to Theon; Brienne waits for a sign; Stannis remains stubborn; Jaime tries to reconnect with family.
Matt inadvertently brings back one of a mysterious group which comes through an anomaly followed by deadly tree creatures.
Chaos breaks out at a school's Saturday detention when a teacher is killed and the pupils start to run riot - unaware that a deadly Therocephalian is stalking the corridors looking for its next meal.
The team stumble across the wedding of ex-ARC member Jenny Lewis at a a stately home where they are investigating an anomaly.
Connor and Abby uncover the existence of a supposedly mythical Labyrinthodont in a small coastal town. While trying to track it down, they come across a group of farmers smuggling dangerous fuel.