Quantico episode 4
Alex needs to find the second bomb before it explodes ABC

ABC's superhit thriller Quantico has finally reached its climax where the real bomber behind the Grand Central Station will be unmasked and this will allow Alex Parrish to walk away free from the FBI prison. She still remains the prime suspect in the terror attack that killed many as the investigative agency thinks that the mastermind of the attack is one among the rookies.

Click here to watch the episode via live stream online. Quantico airs every Sunday night on ABC network in the US.

In the previous episode, agent Simon Asher admits that he prepared a plan to plant two bombs but his strategy had many flaws. However, someone stole the blueprint from him and fixed all the flaws before blasting the station. He still remains a suspect. Doubting that the real culprit is one among the rookies, the FBI asks agent Parrish to spy on her friends who were a huge support system for her during her escape from prison and nabbing the real killer.

Priyanka Chopra, who plays the character of Alex, has hinted that anyone can be the terrorist but she thinks Caleb and Nimah have more chances of being one.

"Shelby once said, 'I would be petrified to live in a world where Caleb Haas was a terrorist.' I'll go with that!" she told Hollywood Reporter. She also added that "Nimah and Alex are really close, even though Nimah is competitive, ambitious and wants to be the best and wants to kick ass. At the same time she says what she feels, she's like straight up honest and bad ass. That's the difference between the twins. It's something to think about."

So true. #Quantico

Posted by Quantico on Tuesday, December 8, 2015

The synopsis for the midseason finale titled Inside reads: "The terrorists responsible for the bombing of Grand Central Station finally reveal themselves, but instead of answers, more questions remain. While back at Quantico, the recruits receive a well-deserved few days off for the holidays, but not everyone is oh so merry when secrets are revealed and lines and blurred."

Marcia Cross will guest star as Sen. Claire Haas, Caleb's mother, who will make a very lasting impression on Shelby during their first meeting. Watch the promo below.

Quantico episode 11 will air on ABC network on 13 December.