Melissa Ponzio

After reading the journal left by one of the Gilbert ancestors, Jeremy is inspired to return to his hobby of sketching fantasy creatures, a talent he had abandoned when his parents died. Much to the surprise of their friends, Matt and Caroline continue to hang out together. When Sheriff Forbes (recurring guest star Marguerite MacIntyre) tells Damon there has been another attack, he offers to track down the killer and learns a startling piece of information about the town's founding families. Alaric (recurring guest star Matt Davis) steps in to help during an awkward scene with Jeremy, Tyler and Mayor Lockwood (recurring guest star Rob Pralgo). Stefan and Elena come to a new understanding, but everything changes when Elena accidentally makes a devastating discovery.

Casey tries to convince everyone he is healthy; Shay avoids the lawyer who wants to talk about Daryl's suicide; Otis and Katie grow closer; Boden helps a woman with a negligent landlord.

The members of the firehouse spring into action when a helicopter explodes over a densely populated area, scattering debris; a dangerous man corners Brett.

Severide must leave Lindsay and the Intelligence Unit to find Katie; Blackhawk players Brent Seabrook and Duncan Keith give Shay a tip; Casey gets more information about his head injuries; Dawson works to pass the physical test.

A temporary chief fills in for Boden, who is forced to take some time off for personal reasons; Lt. Severide deals with an unwelcome addition to the squad; Brett becomes close to a girl she previously rescued; Casey starts seeing a new woman.