播出2018年07月01日敬请关注！
简介：HellBelowisanevent-basedserieschartingthestealthgameofsubseawarfare,trackingthedramaticnarrativefromcontacttoattackofthegreatestsubmarinepatrolsofWorldWarII.FromtheriseoftheWolfpacktothedriveforvictoryinthePacific,weprofilethestrategicmastermindsandtherapidevolutionoftechnologyandtactics,asthethreatofunderseawarfarebringseverysailor'sworstnightmaretolife.Expertanalysisandstockfootagearewovenwithnarrativedrivenre-enactmentsfilmedonauthenticSecondWorldWarerasubmarinestoplacethecharactersattheheartoftheaction.…