Kaira is an agent helping out Steve when she gets roped into the mission of finding the winter soldier. All she knows about him is that he's an assassin, which is why Kaira is surprised when he ends up saving her life. Her struggle between helping Bucky realize who he is and with defeating him only becomes more complex when she goes undercover and starts falling in love with him.

Set right after CA: TWS. After a young woman finds Bucky Barnes and decides to take care of him, Fury and Steve both agree that he needs to get back to himself instead of bringing him immediately into S.H.I.E.L.D. Along the way Kenzie and Bucky fall in love but it isn't easy with their pasts as well as present things trying to keep them apart.