When four men go missing the BAU searches for a link between them in order to track them down. J gets upset when her son Henry doesn't want to celebrate Halloween.
The team head to Wichita to investigate a number of deaths in the aftermath of a storm. Meanwhile, work pressures cause problems for JJ at home.
JJ is shaken after investigating the case of two abducted children, and tells her husband about the events.
When prostitutes in Miami are discovered murdered in a similar style to local animals found dead there, the BAU must work fast to find an UnSub whose confidence is quickly escalating.
The popular crime drama following the work of the FBI's Behavioural Analysis Unit, which attempts to solve crimes through psychological profiling, returns with its eighth season.