After a hostage situation turns deadly, CSI must scour the scene in order to bring justice to those responsible. However, they soon discover that one of their very own may have closer ties to the suspects than they ever would have thought.

The Internet turns a high school girl into an instant sex symbol around the world, and when information about Horatio is leaked, his life is threatened.

Horatio is in a race against time when his son goes missing following a deadly prison break.

While investigating the death of a student in a car fire, the CSIs come across evidence that suggests Tim Speedle may still be alive.

A sports legend is murdered and the investigation is stalled when the body disappears from the lab.

After several odd occurances, the CSIs must find a serial killer who killed during a total solar eclipse.

When a model dies from electrocution on a runway, the case leads Horatio once again to his son.

When a family vacation takes a turn for the worst, the CSIs are called in to find a killer before those who survived take matters into their own hands.

When Calleigh (S6E9) was under attack, she has been faced many problems relating to her professional carrier and because of this she had also faced many problems in life. At last her life was at danger. When she was attacked her image had lost in her professional carrier. As she had no chance to escape from so her life become risky.

The CSIs delve into the lives of the rich and famous when a nanny to the wealthy is found dead.

When three weapons' smugglers are killed by a rare and illegal machine gun the CSI team must find the killer and the gun before it kills again.

The investigation of a young woman's murder, reveals a meth lab in her apartment. The team also discovers an unscrupulous FBI agent's secret life.

The lady who is the mother of Kyle (S6E13) with a reason she appears as a rich widow. She does like that in order make her Kyle happy and to take care of him in a good manner. Kyle is also known as Horatio’s ex. She do that with an intention to make her son happy at all time throughout in his life.

In the party (S6E14) a lady finds an unexpected guess of the groom in the wedding hall. She has noticed it from a long distance of view. He was professional baseball player who was standing right next to his bride. The investigation in the party were stiffed by a member of the strip stag party hall, where one of the strippers.

Julia arrests (S6E15) once again to remained him of past happening of things in his life. He was extradited to Brazil to murder about two years ago. Calleigh was supposed to do the work on the mistakes which were anonymously put on the internet. This was put in the internet by an unknown cyber stalker without informing.

With the past memories (S6E16) of his arrest in long ago deals the follow. The special appointed CSIs who were appointed by some concerning authority. As they have powers they had got the file of Calleigh. Calleigh is lady who was kidnapped by the kidnappers. So in order to save her form the kidnappers they have to safe her as soon as possible.

Whenever a vigilante (S6E17) killer is on the subject of the loose searching for and killing Internet potential predators, they must do something rapidly prior to the vigilante claims another victim. When the murderer is actually hunting to kill, prospective prey should pretend before another victim is on the fire. They must work or take action immediately. Because if they don’t then another animal will be aimed at.

The investigation (S6E18) team while doing their investigation they found a body in the sinkhole. This made the investigators gone through to make a robbery in the place where aim will kept in a shocking of a top most secret. That idea had done to maintain a top most secret among the investigators with intentionally unknowingly to others.

The decision which was made by Allex (s6e19) in connecting with the skilled duty and with also in the family unit. Imagine when his own son become a suppose which made him to involve in the put to death case. This was got identified by the Allex and he planned to save the son and this leads to terrible consequences.

By making a call to the fake number (S6E20) that is 911 has found dead. Investigators were shocked by hearing to this matter. So in order to save them from they were leaving the team. Which made the team contains less number of investigators. Using of fake number was the main reason to make the team less in number.

The team members had stayed apart from Horatio (S6E21) team. Because of this reason Horatio had been in a situation under the risk. He had faced many problems in his own life because of the members who had stayed apart from the team. He has taken many steps to stop which leads his life to be risk sudation.