In an alternate-history "Europa", mad scientists called Sparks turned the Industrial Revolution into a full-scale war that ravaged the continent, until Baron Wulfenbach clamped down with an iron fist. Enter Agatha Clay, an "adorkable" student who can't do anything right - until she learns of her "Spark" heritage. She's the long-lost daughter of storied hero Bill Heterodyne and villainess-turned-good Lucrezia Mongfish. For the first time in a century, hope springs in the hearts of common people as our heroine, now Agatha Heterodyne, learns to mix scientific genius and kindly compassion to regain her heritage and free Europa from mad sparks and tyrannical dictators.