Secret Way Cellar Door Escape

This little boy came running to you and told you that he had seen some people forcefully dragging a man inside that abandoned underground construction. You quietly go to that place and sneak inside. There is nobody inside the cell except the man who is kidnapped. The man is in no condition to escape by himself and you must help him. You can see that the kidnappers have sealed all the possible exits but your instincts suggest that there is a secret exit. Now you have no other option but to trust your instincts and look for that exit. The real scare is that the kidnappers might return anytime and you don’t want to be caught by them.