Tyler Jacob Moore

The BAU team is following a serial killer who has discovered the Internet as a hunting ground for himself and has given the expression 'social networking' a completely new meaning.

A family emergency brings Charlotte and Cooper closer together, while Violet plays a dangerous game with Pete and Sheldon.

Palmer is put in grave danger when he becomes the target of an anonymous murderer, whom only he can recognise.

The town blames Elsa when a fatal icy spell is cast on Marian, not knowing that another resident has the same powers, and Mary Margaret struggles to balance motherhood and leading the town.

As the Spell of Shattered Sight approaches Storybrooke, Mary Margaret and David rally the residents to prepare for the curse while Belle and the fairies work together on an antidote.

Firehouse 51 helps Herrmann put on a school fundraiser; Carver's troubled brother comes to town; a grateful citizen is determined to thank Brett and Severide for saving his life.