The BAU travels to Santa Monica when burned bodies of homeless people begin showing up by the famous pier. Also, Rossi reconnects with his former Marine sergeant from Vietnam.

The BAU searches Tallahassee for a serial killer who calls the authorities to report the crimes prior to committing murder. Also, as Rossi prepares for a weekend visit with his daughter, Joy, he receives startling news about the death of a comrade in Vietnam.

The BAU revisits its origins when they look at one of Rossi and Gideon’s old cases to track a killer that got away.