Everyone at Thanksgiving dinner has a bad reaction to Colleen's cauliflower dish. Sophia and Tim race to replace Heather's spoiled turkey and Greg and Jen try to choose Lark's godparents.
While trailing a recently released murderer with plans to kill again, Dexter is gripped by the latest crime of the Ice Truck Killer: a chopped-up prostitute discovered in a pro-hockey ice rink.
The police identify the Ice Truck Killer, however Dexter feels there is something wrong with the suspect. Dexter must also deal with Paul, Rita's recently paroled husband.
Garcia plays a crucial role in a case when she travels to Alaska with the BAU team to investigate the murders of several members of a small town.
George's routines are beginning to irk Arthur. Brenda slowly plans her relationship with Joe while Keith begins a new job and Diaz has a fling.