Dr. Helen Magnus pursues Adam Worth back to 1898 London as he attempts to save his daughter. If successful, Magnus knows he will destroy the natural order of history and must stop him from irreparably altering the World’s future at whatever cost. From there, the intensity is raised.

In present day, the remaining Sanctuary team scrambles to prevent all-out war as droves of Hollow Earth Abnormals continue to rise to the surface. The rules have now changed.

original airdate-October 7,2011          rating-1.380 million