Interred kicks off on a dark, stormy night in backwoods Vermont. When protagonist Baxter glimpses an eighteenth-century teen lurking in her backyard, she questions her own sanity before doubting the space-time continuum. But when her estranged cousin Fred barges into the family's farmhouse, he brings good and bad news. On the plus side, Baxter's psyche remains, for the time being, intact. The bad news? Declan, the broody boy prowling around her garden, isn't just real; he's also her reluctant mentor in all things magic, duty-bound to guide Baxter through the emergence of her powers as a time-bender.

Even worse, the Council (yes, that's as sinister as it sounds) forces Baxter into the internment. According to the Council, burying Baxter alive will trigger her powers and hasten her growth into the generation's most powerful time-bender. But when Baxter rips a portal through the space-time continuum, she and love interest Jack flee the internment altogether. As far as Baxter's portals take them (Vermont! New York! The 80s!), however, Fred won't surrender— because Baxter's powers are all that stand between her slime ball cousin and his crazed scheme for vengeance.