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Here’s the scoop: It’s 1933. Pulitzer Prize–winning reporter Molly Sloan, along with her research assistant Timmy Mendez and mysterious librarian Ben Wilcott, band together to save the world from acidic sludge monsters from the planet Zygon. If that sounds a bit far-fetched, well, that’s the point. Since its creation as a traditional radio play in ’90s-era Austin, Texas, The Intergalactic Nemesis has captured audiences across the U.S. with its eclectic blend of graphic novel art and old-timey radio drama performance. If you’ve ever seen a radio play performed onstage, this show’s got many of the same features: a foley artist, a musician, and actors playing a range of characters. But unlike a traditional radio reading, the action can also be viewed behind the actors in graphic novel illustrations, sans word balloons. The company’s first run in 2011 was featured on Conan and NPR’s All Things Considered, and now there’s a sequel: The Intergalactic Nemesis: Robot Planet Rising. In this installment, Sloan and Mendez trek across space to find a lost commander, but run into Sloan’s former fiancé, a Soviet spy, and a mysterious robot who calls itself Alphatron. Don’t worry if you haven’t heard of the series before—the story is self-contained and requires little, if any, knowledge of the plot so far. Sept. 20-21 at Artisphere. $20–$25.