Watch Arthur's Mantle

After a long night of work on an Ancient device found in Glastonbury, England, Carter achieves a breakthrough. As Mitchell looks on, she activates the device - which unexpectedly shifts them both into a different dimension. Invisible and powerless, they can now only observe as their friends try to figure out where they've gone./n/nA distress call from the Sodan warriors interrupts Teal'c and Daniel's search. Teal'c and SG-12 hurry to the Sodan homeworld, where a brutal massacre has taken place. The Sodan leader, Haikon, clings to life as he explains what happened. A Prior of the Ori turned one of the warriors, Volnek, into an irrational killer. Wearing a Sodan wrist device that makes him invisible, Volnek butchered his comrades and is still stalking the area. Because warriors wearing the wrist devices can see each other, Teal'c puts on a second device and sets out in pursuit./n/nOn Earth, Dr. Lee discovers lepton radiation near the Ancient device. Daniel, recalling that leptons were as