"When Endless Thread producer Nora Saks learns that a "toxic, self-cloning worm that poops out of its mouth is invading Maine", she starts sounding the alarm about the impending eco-doom.
Until, that is, state experts clue her into the "real threat"; a different creepy crawly wriggling towards The Pine Tree State's gardens and precious forests, and fast.
In an attempt to find out more about this real threat, co-hosts Ben Brock Johnson and Nora Saks tunnel down a wormhole, encountering a long history of xenophobic rhetoric about so-called invasive species, and some hard truths about the field of invasion biology itself. Eventually, they wind up at a community garden in Bangor, Maine, where the worm wars are playing out in real time."