The thing is no marathon is really needed. Because they have not explained the backstory properly there is really nothing to catch up on.
If what you caught was the season premiere then I can save you time. Someone in the show's braintrust decided they needed to make the show more focused. So in the course of this premiere and the finale last season they engaged in wholesale slaughter of characters. As a result, the main characters have been whittled down to:
Nolan
Irisa
The Mayor
Datak Tarr
Stahma Tarr
And we're down to two running stories:
1) Preventing the Votnais Collective from overrunning Defiance
2) Getting the rare mineral mined by the Omec without also letting them power up their ship and turn Earth into their personal cattle herd.
Everything else is peripheral. Ironically if they had a properly developed show universe to give context to what you see on the screen they actually have the pieces in place for a decent show.
If what you caught was the season premiere then I can save you time. Someone in the show's braintrust decided they needed to make the show more focused. So in the course of this premiere and the finale last season they engaged in wholesale slaughter of characters. As a result, the main characters have been whittled down to:
Nolan
Irisa
The Mayor
Datak Tarr
Stahma Tarr
And we're down to two running stories:
1) Preventing the Votnais Collective from overrunning Defiance
2) Getting the rare mineral mined by the Omec without also letting them power up their ship and turn Earth into their personal cattle herd.
Everything else is peripheral. Ironically if they had a properly developed show universe to give context to what you see on the screen they actually have the pieces in place for a decent show.