A caller named Brad called in to talk to Dyer and he wasn't happy. You see, Brad caught Rick in a contradiction, and a blatant one at that. The caller accused Dyer of lying about facts and Freezer Boy denied the accusations.
It all revolves around the transport of Hank after the "killing". The first part of the video is a bit long but I wanted to make sure I included as much as possible.
Welcome to the light Brad.