A Sandman Link takes over the bodies of everyday people when they sleep and has them act out their wildest subconscious fantasies. Kate falls asleep while quarantining an area and the Sandman enters her. Kate becomes dangerous under the Sandman's attraction and the team must destroy it before it's too late for Kate.

Nick and Kate must stop the execution of a boy's father who has been wrongfully convicted of a murder committed by an invisible Boogeyman Link.

A Link so monumentally evil that his name has been lost to history reappears on Halloween, the one night of the year when Links can roam with impunity. The confrontation between the Link and Nick is made all the more personal - and lethal - as it is the villain responsible for the death of Nick's former partner. The mysterious Link is bringing the corpses of serial killers back to life so they can carry out his plan to assume leadership of all Links.

The Scarecrow, a particularly noxious Link, is inadvertently unearthed and loves nothing more than the fear and mayhem he creates by reading - and exploiting - the "fear center" in every Chicagoan's subconscious. As the city degenerates into mass hysteria, Nick and Kate learn that to defeat the Scarecrow, they must first deal with all their own fears and phobias