When Los Angeles’ blood supply is hacked and deemed unusable because of fear it’s been tainted, Team Scorpion must find the culprit in order to save a young girl in…

After getting into a science camp, April tells Luke that she cannot go on the boating trip with him over the summer. Zach is asked to go on tour with…

The CSIs dig to find the truth about how a recent shootout at a gun store might connect to a young woman who may have committed suicide.

Arizona tries to reconcile with Callie, who has big news to share; Teddy faces an important decision; the residents receive new interns; the Chief makes an announcement.