David discovers that NorBac has been tapped by Riddlemeyer. The team must find what caused the bear to attack Craig with no reason as a human being is presenting the same symptom. To save Bob's eyesight, David decide on a peculiar procedure.

Geraint Wyn Davies, Greg Campbell, Hal Roberts, Karen Ivany, Leah Pinsent, Noam Jenkins, Peter Mikhail, Stephen Amell, Tatum Knight, Thomas Mitchell