Earth's Ancient weapons chair is at the center of an international dispute. Dr. Daniel Jackson is sent to Antarctica to sooth diplomatic tensions while General Jack O'Neill reluctantly takes charge of a radical new weapons chair training program.
But when a natural disaster hits Antarctica, the future of the Ancient outpost -- and of Earth itself -- is thrown into jeopardy. Yet again, Earth's fate lies in the hands of SG-1, but this time the team are lost and powerless to help.
Trapped within a strange reality, SG-1 encounter old friends and enemies as they struggle to escape and stop the Ancient cataclysm that's threatening to destroy the planet.