The previously unknown purpose of the ninth chevron is revealed and takes a group of refugees on a one-way trip to a millions of years old Ancient-built ship. Led by Dr. Nicolas Rush and Colonel Everett Young, the refugees are trapped on the ship, unable to change its programmed mission.
Trapped on an Ancient spaceship billions of light-years from home, a group of soldiers and civilians struggle to survive and find their way back to Earth.
The adventures of a present-day, multinational exploration team traveling on the Ancient spaceship Destiny many billions of light years distant from the Milky Way Galaxy. They evacuated there and are now trying to figure out a way to return to Earth, while simultaneously trying to explore and to survive in their unknown area of the universe.