A Las Vegas team of forensic investigators are trained to solve criminal cases by scouring the crime scene, collecting irrefutable evidence and finding the missing pieces that solve the mystery.
A string of deaths, including a gamer found dead on his couch and a newly divorced man at the bottom of a pool, instigate a bet among the CSIs as to whether they've "hit for the cycle" - a homicide, a suicide, an accidental and a natural death all in one night