Criminal Minds: Next on Criminal Minds: "Mayhem" - When an SUV carrying members of the BAU explodes, the rest of the team fights to save their colleagues and catch the terrorists responsible for the bombing, on a rebroadcast of the fourth season premiere of CRIMINAL MINDS, Wednesday, July 29 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Michael Steger ("90210") guest stars. (Originally broadcast 9/24/08)