Seoul Mates
This is easily one of the best episodes of any television show ever. I may be biased since NoEx is my favorite show of all time, but having recently rewatched this episode for the first time in a while, just wow. The talk that Chris and Maurice have, with Maurice trying to come to terms with having Duk as his son is brilliant.
The further a society drifts from the truth, the more it will hate those that speak it.