One by one, members of the Shakaar resistance cell are murdered, and Kira becomes increasingly worried that she will be next.
A family of four is brutally murdered in their own home, but the bodies are missing from the crime scene. When the blood evidence suggests only three victims were killed, Nick is the only one on the CSI team that believes the fourth victim, the young daughter, is still alive. It's a race against time to find the perps who may lead us to one possible survivor.
Lois and Clark help a computer programmer, falsely convicted of murder, combat a software virus that is destroying the nation's computer networks.
Harm is ordered to defend a plane-maintenance officer who he believes is guilty of making an error that caused the death of an aviator.
Finch is convinced that Nina has an imaginary alter ego while Maya discovers how Jack deceived her on Halloween many years ago.
