R.I.P. Mary - May Santa bring you the right toy now

A serial killer is on the loose after a string of related attacks happen within Metropolis. With the help of the not-so-mighty Detective Jon Jones, Clark investigates Davis after noticing that he's been at every crime scene. Davis keeps blacking out and thinks he actually might be the killer, but accuses Clark instead. Jimmy just wants to ride shotgun in an ambulance and Chloe is hosting Meteor Freaks Anonymous sessions at the Isis Foundation.

Phil Morris returns for another special guest appearance as DC Comics original character John Jones ("J'onn J'onzz"), a.k.a Martian Manhunter.