18集。在《重案六组》电视剧中，第18集剧情中，一群坏人来到了卧底的家里，问卧底的孩子他的父亲叫什么名字，孩子非常懂事，一直到最后都没有说出父亲的名字。
18 episodes. In Episode 18, a group of bad guys comes to the undercover home and asks the undercover kid what his father's name is, the child was very sensible and didn't say his father's name until the end.
