As “Ghost in the Machine” opens, we see our rag tag group from the 2nd Mass making their way toward some semblance of what they call “home,” but Charleston isn’t the same anymore and our group finds that out very quickly. The Espheni aliens have rallied their forces and are hitting back, hard. They’re using a new method to wrangle humans –large triangular staffs that emit impenetrable and lethal laser grids. So why are they gathering humans rather than destroying them? This will be the burning question presiding over the season, at least for the first few episodes.