Caleb Haas, where are you?

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Quantico is missing an agent, and from the sounds of it, they may never get him back. The FBI golden boy is still kicking but back at the Academy, but in the future, Caleb (Graham Rogers) has dropped out of the story line.

Don't worry--he's not dead. Only one Haas bit the dust during the Command Center bombing, and that was Clayton (Mark Pellegrino). The acting director's son may have suffered a grievous injury instead.

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"I can say that Caleb will not be seen in the future for a very long time, if at all," series creator Josh Safran told TV Line. "It's safe to say that Caleb didn't die, but that's not to say that Caleb wasn't harmed."

Fans should be wary of the future timeline as the spring run proceeds. Caleb won't be the only former NAT to go MIA. Just as writers are beefing up the Academy plot with three new agents, the New York portion is slimming down. It's time to bid farewell to one of Yasmine Al Massri's characters.

"I will tell you right now, only one of the twins is in the future storyline," Safran informed TV Line. Just as with Caleb, there is one caveat: "It's not that one of them is necessarily dead."

Where on earth have these agents gone? Keep watching Sundays at 10 p.m. ET to find out.

Press PLAY below to see a preview for next week's adventure.