The investigators attend the gala grand opening of a mob museum, only to witness an attempted hit on mob lawyer and former mayor Oscar Goodman.

The CSI unit investigates when Frank, an apparent murder victim, sits up and needs help but is he just another victim?

The murder of a popular sideshow performer sends the team behind the scenes at a carnival freak show.

The CSI crew is stumped when they discover a disembodied brain at a crime scene where all the other brains are accounted for.

Three new murders related to three unsolved (or incorrectly solved) crimes from the past come back to haunt the CSIs.

After multiple attacks on a public tram, the team has just one witness and a lot of questions.

The team meets a blast from the past, with a chance to solve a cold case that has haunted the team for 14 years.

Hank starts taking yoga classes after injuring his back at work; Peggy bags groceries at a mom and pop store that’s having a hard time competing against Megalomart.