Ryleigh Booth is the younger sister of Special Agent Ryan Booth. When she follows in his footsteps to become a member of the FBI he and their childhood best friend and neighbor Christian are brought to the Academy to go undercover. 8 months after their graduation, Alex Parrish and Ryleigh are left at the scene of the Grand Central bombing. But, Ryleigh has the blame pinned on her and she's forced to ask her friends to help clear her name. Heavily based off the ABC show "Quantico"