The 204th episode of Stargate SG-1 airs on the Sci-Fi Channel, starring Ben Browder, Amanda Tapping, Christopher Judge, Claudia Black, Beau Bridges, and Michael Shanks. 
Daniel figures out the true name of the guardian and dismisses the dragon guarding the Sangraal. But the gem in the cave is simply a hologram. SG-1 and Baal are teleported to Merlin’s workshop, a chamber that transports its occupants through the stargate network to a new planet (with a similar chamber) every few hours. Adria’s Ori nature means that the chamber leaves her behind – but it also means that she can access the dialing network directly in order to track down SG-1. It takes her time to do so, but gradually she begins to catch up to SG-1. Vala finds an Ancient knowledge repository device, which awakens Merlin from suspended animation. He agrees to help SG-1 construct a new Sangraal, the old one having been destroyed. But he is too weak to do the job himself, so he passes his knowledge and memories along to Daniel, who struggles to complete the device before Merlin’s consciousness overwhelms his brain or Adria’s force arrive in their current location.
written by Joseph Mallozzi and Paul Mullie
directed by Andy Mikita
music by Joel GoldsmithCast: Ben Browder (Lt. Col. Cameron Mitchell), Amanda Tapping (Lt. Col. Samantha Carter), Christopher Judge (Teal’c), Claudia Black (Vala Mal Doran), Beau Bridges (Gen. Hank Landry), Michael Shanks (Dr. Daniel Jackson)
LogBook entry by Dave Thomer