When does Unforgettable return?

Unforgettable is an American police procedural crime drama television series that premiered on CBS on September 20, 2011. It stars Poppy Montgomery as Detective Carrie Wells, a police detective with an unusually detailed and photographic memory. Carrie has hyperthymesia, a rare medical condition that gives her the ability to visually remember everything. She reluctantly joins the New York City Police Department's homicide unit after her former boyfriend and partner, Lieutenant Al Burns, asks for help with solving a case.
Carrie Wells has hyperthymesia, a rare medical condition that gives her the ability to visually remember everything. She reluctantly joins the New York City Police Department's Queens homicide unit after her former boyfriend and partner asks for help with solving a case.