Sheldon Hawkes goes under water to gather clues but could be in danger when he can't come up for air. Mac learns of something else under water.
Genres: Crime , Drama , Mystery
Keywords: crime-investigation , detective , enthusiastic , forensic , murder-investigation , new-york-city , nypd , police-procedural , spin-off , watch-full-episodes-online , crime-scene-investigation , crime-scene-investigator , forensic-evidence , forensic-expert , homicide-detective , homicide-investigation