The 126 crew responds to a military tank on the loose in downtown Austin and a human pile-up at the roller derby, on the season premiere.
The team tries to track down a killer targeting single businessmen in Ohio.
A Navy reservist's body is found in a beat-up car at the end of a gun range; Kasie weighs the pros and cons of buying a gun.
When the CSI team discovers the shredded remains of a man, they find themselves with multiple suspects who may be responsible for his death.
When the top salesperson for a beauty company pyramid scheme is murdered, the team sifts through a long list of possible suspects who would want her dead; Adam befriends a homeless man.