After running low on vital resources, Ro must decide whether to risk the lives of his crew in order to obtain more fuel for Odyssey's long journey home
When a Section 31 spy is revealed, T'Lorra takes matters into her own hands. Meanwhile, the Odyssey comes face to face with an Archein ship intent on their destruction.
The crew finds a dead planet once populated by Archein scientists. However, once the preserved body of one the scientists is discovered, so too is a conspiracy that pushes Stadi to her limit.
Odyssey and The Helena Chronicles, both crews must fight to return the Odyssey home to Ithaca in The Milky Way in time to save both galaxies from certain destruction by ever expanding black holes.
The Federation, Romulans, and Klingons find themselves fighting a new threat, the Archeins. Without options, their combined efforts result in a daring plan to infiltrate their home world in the Andromeda galaxy.
Ro, Stadi, and T'Lorra leave the Odyssey to investigate the source of a Starfleet distress signal. What they uncover thrusts them into a situation much larger than they could have ever anticipated.