Someone is trying to physically intimidate Charlie so he will stop working a case where an investigative journalist has gone missing. Meanwhile, Professor Ray Galuski has been helping Alan do some projects around the Eppes homestead. When Ray suggests a number of improvements to make the home more environmentally friendly Alan gets upset at the thought of changing things.
![Numb3rs S04E11 - breaking point [HDTV, XviD]](http://img223.imageshack.us/img223/6233/numb3rsxf3.jpg)
