I don't know who I am

its been a week since Colby came home from the hospital and everything has been a struggle. He barely eats, he has trouble sleeping, and he hasn't said a word. The day he came back he had a conversation with Sam and things were relatively normal, but after he woke up from a nightmare that reminded him of everything he did while at the lab he withdrew himself. He shut everyone out, and for almost an entire week he hasn't said a single word. Matt is facing similar issues. One day news breaks that the government has corrupted, and that America is facing a civil war. It just so happens that during that day the entire group was at the Golbach's house. The group including Jake, Reggie, Aaron, Corey, Brennen, Kat, Nick, Matt and Chris. Matt and Colby were alone in Colby's room when all hell broke lose, and the two boys were forced to disappear.
What happened to them? Where did they go? What did they do at the lab that was so bad that it made them like this?