未知
剧情简介：Threeyearsago，WuGangwaskilledforgettinginvolvedindrugsbythedrugcartelKGroup.HissonWuZhenfenggotexpelledfromthepoliceforceforviolatingtherules.WuZhenfengwassodepressedthathetriedtoleavethecountrybutwasstoppedhalfwaybyhisgoodfriend，ChenYu.Ontheway，thetwoofthemalmostgotkidnapped.WuZhenfengsavedChenYufromthedrugdealersbutwentmissing.Eversincethat，theirfateshadbeentotallychanged.Threeyearslater，ChenYujoinedthecounter-narcoticspoliceforce，whileWuZhenfengcamebackandgotinvolvedinahomicidecase.AfterWuZhenfengclearedhisname，ChenYunoticedthatWuwasrelatedtodrugcartelsinmanyways.Toeradicateallthelocaldrugcartels，ChenYutookonanundercoveroperationashewastoldbyhissuperiors.AndthenhefoundthatWuZhenfengwasactuallyaheroworkingforthepoliceasaninsidemaninthedrugcartel.ChenYuinfiltratedthecartelafterWuZhenfengmanagedtodoso.Theyworkedsidebysideandfinallyeliminatedthecartelinonegoincooperationwiththepolice.Thetwogoodfriendslatercontinuedtotakeuptheresponsibilityanddevotedthemselvestothecounter-narcoticsoperations.
