It seems the Grand Central bombing wasn’t the “Quantico” agents’ first run in with a terrorist attack. In Season 1, episode 15 of the ABC drama, Quantico itself will be under fire. The NATs will have to find a way to fight back.

“A terror cell tries to infiltrate Quantico, forcing Miranda [Aunjanue Ellis] and Liam [Josh Hopkins] to pay a deadly price,” the synopsis teases. Obviously, Liam and Miranda have been in the flash-forwards, so viewers know they’re alive. However, it could be someone close to them who dies. After all, we haven’t seen Miranda’s son Charlie (J. Mallory McCree) in the future yet.

Speaking of Charlie, he’ll be in this episode, titled “Turn,” too. It looks like he’ll meet with Miranda and Nimah (Yasmine Al Massri) about something. Nimah was trying to infiltrate the group that kidnapped him, but Raina’s (Al Massri) spying may have blown her cover. She’ll have to see if the criminals still trust her.

Quantio 115 spoilers From left: Charlie (J. Mallory McCree), Miranda (Aunjanue Ellis) and Nimah (Yasmine Al Massri) will be in a stressful situation in "Quantico" Season 1, episode 15. Photo: ABC

Elsewhere in this episode, Claire (Marcia Cross) will play a big part. She’ll visit Caleb (Graham Rogers) in the present day, but the future will bring her to cross paths with Alex (Priyanka Chopra). “Alex continues to get instructions from the terrorist – only this time, it’s Claire Haas’ life that hangs in the balance,” the episode 15 summary reveals.

Watch the trailer for “Quantico” Season 1, episode 15 below:

Though Liam kicked Drew (Lenny Platt) out after his outburst in episode 14, Drew will still be around. Pictures show him with Alex and Liam during episode 15. It looks like he might still be at the training facility when the terrorists infiltrate.

Unexpected guests will also include Samar (Marjan Neshat), the press release reveals. Shelby (Johanna Braddy) is still hung up on the imposter that pretended to be her sister, but it isn’t clear if Samar will show up in the present day or the future.

“Quantico” Season 1, episode 15 airs Sunday, March 27, at 10 p.m. EDT on ABC.

Quantico Haas family Claire (Marcia Cross) visits Caleb (Graham Rogers) in "Quantico" Season 1, episode 15. Photo: ABC Quantico Alex and Liam Alex (Priyanka Chopra) and Drew (Lenny Platt) chat in "Quantico" Season 1, episode 15. Photo: ABC Quantico 115 synopsis Nimah (Yasmine Al Massri) and Charlie (J. Mallory McCree) look upset in "Quantico" Season 1, episode 15. Photo: ABC