In the highly anticipated sequel to Roma, Underground, Bianca returns to the U.S. for her former employer, the covert organization Rendition, to investigate Cyril Sargent and Nasonia Pharmaceutical. Although ambivalent about the assignment and uneasy about her online “friend,” Loki, she is enticed into researching what Sargent is doing with insect genetics that might upset the world of cancer research and treatment. Old friends Farrugia and Gennaro uncover a twisted conspiracy from their past and join Bianca in Boston where they will experience conflicted loyalties, question allies, and confront uncertain enemies, as they’re drawn into the wasp’s nest.