SGU follows a band of soldiers, scientists and civilians, who must fend for themselves as they are forced through a Stargate when their hidden base comes under attack. The desperate survivors emerge aboard an ancient ship, which is locked on an unknown course and unable to return to Earth.
In Season 2, the Destiny continues its journey through the Universe, while its crew suffers from a lack of supplies and no knowledge of its final destination. Struggling to control the ships systems, tempers and personalities of the crew clash. Facing uncharted space and enemies who would take the ship by force, the Destiny crew persevere in their struggle to stay alive and find a way home.