It's been a year since Odyssey became trapped in Andromeda. Pursued by the Archein and determined to get home, T'Lorra must face her past, and Ro must step up to the plate and negotiate with the Archein before it's too late.

With T'Lorra back on duty, and Vaughn still in the Brig, Maya Stadi is under pressure from seemingly everywhere. Will her training be enough to prepare her for what comes next? The Odyssey's journey home may depend on an apparently dead planet, but what secrets have the Archein left behind?

Season 2 draws to a close with Ro Nevin being called by the mysterious Great Ones of the Archein people. Seram moves closer with her plans of conquest as Odyssey must prepare for the battle of their lives.