Dexter's attractive new Narcotics Anonymous sponsor threatens Rita, and Dexter tries to throw the FBI agent off his trail.
Brennan and Booth investigate a deadly explosion at a hotel where a conference on drug trafficking is being held, but soon discover that things are not what they seem.
After a petty officer's son is found murdered, evidence suggests Kasie's lifelong best friend is guilty.
Nick and Hank encounter a ghostly woman amid investigating a series of attacks and abductions on children around Halloween.
Hank goes on holiday, leaving Nick and Renard to team and investigate a new case. A local geologist who took volcanic rock samples from Mount Hood dies by being cooked from the inside out.
