When a man buried alive is killed by a crane drilling into the ground, the CSI’s believe they have found a very important piece of evidence, a cardio messenger. From the messenger, Tara manages to find out who the victim was and the time of date, but something odd comes up when the device confirms the victim was shot 1 hour and 30 minutes before the crane really killed him. Meanwhile, Natalia talks to a funeral director because a family wants to bury their daughter but the director claims he needs more money.