Felicity Jones stars as Jyn Erso, daughter of Galen Erso, a scientist-turned-farmer who once reluctantly helped design the Death Star for the Empire. Jyn had run away from harm when her father had been captured, under the iron hand of the director of the massive weapon project, Orson Krennic, who expects Galen to finish what he started. We catch up with her later, as an adult, having been traiend by Saw Gerrera on the ways of the solider, then imprisoned, but Cassian Andor, an espionage agent working for the the Rebel Alliance, sees her potentially helping their side to find the scientist, assembling a rag-tag team of fighters to go on a mission to snatch the blueprints, including one that exploits an Achilles Heel, from the Death Star before it wreaks havoc on a terrified Rebel Alliance.