Joe Marinelli

Gaby, Susan and Lynette begin to panic when Chuck calls them in individually for questioning about the disappearance, and possible murder, of Alejandro.

While impersonating S.H.I.E.L.D., Hydra orchestrates a devastating attack on the United Nations and an unexpected enemy leads the charge against the framed team members.

Castle and Beckett investigate the murder of a plastic surgeon. Meanwhile, Alexis has her first prom and Castle snoops around Beckett's past and is up for a surprise.

After a break-in turns into a homicide, Murtaugh and Riggs set out to find the culprit. Murtaugh and Trish question their trust in Riana as she gets into trouble with friends. Meanwhile, Riggs recalls his troubling childhood and finds a true family with Molly and Ben.

Simone and Sipowicz probe a drive-by shooting; Russell and Kirkendall learn that a baby was shaken to death; Fancy presses for a killer's confession.

Clark Jr readies himself for next week's fight with Laughlin. Sipowicz meets with Rodriguez and tells him what Martens told him. Sipowicz leaves promising to be in touch.