New York City is at risk of another attack from Loki, the god of mischief, and S.H.I.E.L.D. gets a new recruit, a skilled yet mysterious young woman named Rina Snyder. Tony Stark allows Rina to stay in Stark Tower along with the other Avengers as they prepare for the "impending Loki threat", and each Avenger becomes close to Rina through their own relationship with her, whether it is friendly, brotherly, fatherly, or romantically. When the Avengers begin to believe that Loki may be after Rina, they will do everything in their power to keep her safe, but will their efforts be enough?