there were several missing persons cases and no one could link where these people were. No one could find leads or anything. It was starting to look hopeless, truly hopeless. That was until castle looked at the board and said "A lab, they're probably at a lab. But not just any lab, an underground lab." He said. Kate looked at him, considering this. She nodded and had her, castle, Kate and a few other cops went to an underground lab put in the middle of nowhere.

You were one of the missing people, one of the people stuck in this lab trying to get out without being killed.