Flashback before the 3J escape 

"Seungkwan?! "exclaimed Jeonghan when he saw the young man coming in the room after knocking on the door.

"Why are you here?" the doctor asked angrily. "You have been assigned a room you should be in" he continued in the same tone.

"Seungkwan, is something wrong? "Joshua asked when he saw Seungkwan's worried face.

Jun and Joshua was taken aback and the americain got up from his chair and stepped towards the younger one.

No words had come out of Seungkwan's mouth. He was scared to tell them because he was sure he will put them in danger. A few steps away from him here in this room but also in the corridor were people who would take very badly the accusation he was ready to make.

"I'll call someone to take you back to your room, for now let me finish what I was going to do," the doctor was ready to inject the so-called vaccine in Jeonghan's arm, the needle was so close to it.

"STOP" Seungkwan shouted, and everyone turned to look at him.

"Hyung is not a vaccine, he wants to put you to sleep with this sedative so they can take you away. " Jeonghan was speechless and slowly withdrew his arm from the man's grip.

"Don't talk nonsense," said the doctor, who was beginning to get annoyed. Seungkwan on his words approached the trash can and took out the last package that had been used and showed it to everyone : "morphine". The doctor was ready to talk on his walkie-talkie that he carried to communicate with the rest of the staff, he knew that the four of them were going to fight back.

With his other hand he suddenly grabbed Jeonghan's arm to stick the needle in, but the angel pushed him away and the doctor fell to the ground. Jeonghan fled from his chair to get close to Seungkwan and they were immediately joined by Jun and Joshua, "We're going out quickly now," said the oldest, taking Seungkwan by the wrist and pulling him out. They began walking quickly through the corridors, avoiding the gaze of those they passed.

Suddenly the alarm went off. They began to run, but when they reached a crossroads, they saw a soldier on the left corridor who shouted at them. 
"Stop now, that's an order!". 

They accelerated and at another crossroads they locked themselves in the first empty room they found. Jun moved a cupboard full of medicines and materials to put it in front of the door.

"What are we going to do now?" asked Seungkwan, who had his hands on his knees to breathe. Jeonghan was on the floor and took out his cell phone, he tried to call Seungcheol, but he didn't answer. The phone lines were down in the building which was on alert.
He looked up at Joshua, who understood that the angel didn't know what to do.

"Ok we don't panic, we'll find a solution", Jisoo started to concentrate.

 "There are no windows in this room ! " panicked Seungkwan who was also thinking about a plan. "I'm so stupid I shouldn't have warned you that way, they're going to kill us all."

"There was no other solution Seungkwan, he could have injected me this stuff without any problem." said Jeonghan, who hugged Seungkwan.  The angel put his head on the younger man's head to reassure him.

"I hear movement in the c