One of our favorite things about The Expanse is the way that—unlike many an epic TV show—it doesn't string out the plot needlessly. Season two is drawing to a conclusion, and things are moving along. On Earth, Gunny Draper is in trouble with her Martian higher-ups, and the feeling is probably mutual following the way Private Travis was offered up as a scapegoat for the battle of Ganymede. But she wants to see the ocean before they send her home in disgrace; she breaks out of the Martian embassy and finds that life for Earth's dispossessed masses isn't quite as groovy as she'd been led to believe.

She's not the only one in trouble. Errinwright owns up to his role in Jules-Pierre Mao's rogue protomolecule experiments once he realized that Mao may be in cahoots with Mars now.

Ganymede is in quite a mess. Three of the agriculture domes are gone, and while searching for his missing daughter, Prax notices that the artificial environment on the colony is dying. The problem is too little biodiversity; once a pathway gets damaged there aren't enough others to compensate. Or, as he explained to Amos, "the station's dead already, they just don't know it yet."

And we finally get some zero G action! The scene of Alex floating around and shotgunning cans of beer on the float was hinted at when we spoke to Naren Shankar a few weeks ago, and it didn't disappoint.

In this week's podcast, I'm joined by my colleague Cyrus Farivar. We chat about the show, where we're at in the plot, and plenty of other things. We also have an interview with Frankie Adams, who plays Bobby Draper.

I'll be analyzing, debating, and dissecting The Expanse every week with a different guest, and we'll post the podcast on Fridays throughout the season. New episodes air on Wednesdays in the US, so you have time to watch before we get into major spoilers. The Expanse season 2 will air in the UK on Netflix, although possibly not for another month or two.

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Decrypted is Ars Technica's weekly podcast about the TV that obsesses us. Currently we're dissecting The Expanse. Listen or subscribe however you please above and let us know what you think—ideas, questions, and so on—through the comments section, on iTunes, or via e-mail.