Tabitha Morella

When the kill count of a mass-murdering arsonist active in a small town reaches 31, the BAU are called in.

While stalking their next victim, Dexter and Lumen are stunned by the return of an unforeseen guest. Meanwhile, Deb is assigned to the file room, but still manages to discover new evidence in the Barrel Girl case.

Charlie returns from Las Vegas with the woman he married there, who is not Chelsea. Chelsea's dad arrives in town on a visit with his boyfriend.

Tori has to defend herself when Jade claims Tori hurt her in a stage fighting exercise; Trina has to fend off Robbie when he thinks their stage kiss meant something.

When the body of a navy intel officer is found, evidence points to a team of SEALs who are about to depart on a hostage rescue mission.

Sue takes over the role of coaching the girls' soccer team; Frankie gives Brick a hygiene lesson; Axl is confused by Cassidy's painting.