When the U.S. government uncovers an incredible secret buried on Earth, there's one person on the top of their list to call -- Dr. Adeline Brylee. An astrophysicist with buried secrets of her own, Adeline leads a team of scientists and military personnel to discover the truth of the object's origin and its implications for the human race.

Lost within the impossible vastness of space, the Arctangent team must rely on each other to survive, soon realizing being stranded is the least of their problems. As they struggle to get home, new questions and answers emerge, and they find themselves embroiled in a fight that may cut them off from Earth forever.

Having arrived at their ship's destination, the group of reluctant space explorers slowly gain new allies, and with them, new enemies. Still working to find a way back to Earth, they uncover secrets of a civilization far older than their own, which may hold the answers to humanity's greatest questions. 

Now fully entrenched in the battle between Anaki and Jakkari, the members of Arctangent help to solve the greatest mystery of their civilization -- one which has the power to end the war. Though they remain cut off from Earth, they hope with each step forward, they get a bit closer to making it back.

With the final battle looming, unlikely alliances form as the fate of the very galaxy hangs in the balance, and the intrepid group of Earthlings realize their choices can easily tip that balance. Standing together, they work to make it out the other side alive and finally see that pale blue dot they call home.