Zak, Nick and Aaron are off to Ione, CA, to investigate Preston Castle -- a reformatory that once housed juvenile offenders and abandoned children. Its dark history includes an unsolved murder, countless instances of corporal punishment and many tragic deaths.

Zak and the team investigate paranormal occurrences at La Purisima Mission in Lompoc, CA. The former Spanish residence of padres, soldiers and the native Chumash is beautiful, but the air around it is heavy with the tragedy of disease and war.