Maybe the fish heads are interstellar Eco nazis.
They roam around culling the populations of various worlds, just focusing on intelligent species that are able to wreak havoc and knocking them back to the stone age or dark ages so they can't cause so much damage.
They roam around culling the populations of various worlds, just focusing on intelligent species that are able to wreak havoc and knocking them back to the stone age or dark ages so they can't cause so much damage.

Falling Skies has never been distinguished enough in the wriitng to borrow third rate crap like that. Of course, since the bridge was a bust, the sudden appearance of some extras was equally anticlimactic. It was supposed to be a roller coaster ride, zoooming low then riding high (which is the oppositie of what really happens, some writers have no feeling for reality at all!
)