CBS

Season 4: Episode 21 - Hostage

Hostage: When a heist goes bad and a bank manager is shot dead, a frantic gunman takes the entire bank hostage and issues an unusual demand: he won’t release the hostages until CSI comes in to prove he didn’t kill the victim. As the gunman grows more frantic, Mac works to both solve the murder and secretly send information about the gunman back to the team in an effort to identify him. But when the evidence doesn't add up, the gunman makes a shocking disclosure: the hostage taker is actually a hostage himself and the original robbers are holding his family at gunpoint until he recovers incriminating evidence they left behind. As Mac teams up with the hostage to take a valiant trip to rescue the man’s family, there’s one more twist: he lied to Mac about not being one of the bank robbers and now Mac has just become his hostage. To be continued...