The Sanctuary receives alarming news that a large group of Abnormals has been spotted at the entrance to a cave in South Dakota.
As the video images come in, Magnus and the team know immediately that this is the first wave of Abnormals surfacing from Hollow Earth.
original airdate-- June 20,2011 rating--1.283 million
network: SyFy Channel
music: "Sanctuary" theme music composed by Andrew Lockington