The CSIs find themselves faced with one of their most puzzling cases to date as a number of Mac Taylors turn up dead across the city (8/25).
Danny and Lindsay explore the worlds of goth and glam when a girl belonging to the underground Suicide Girls cult is found dead after a concert.
Can Danny escape from the panic room in which he's trapped with a murdered billionaire before the oxygen runs out? Also, Mac probes a stripper's grisly death.
When a barely-dressed man is found dead on a cold day, the CSIs believe the death is linked to the 'Idiot Run', where people race each other in shopping carts.