<Tr> <Td_colspan="7"> Dexter contemplates admitting to the Bay Harbor Butcher killings . Doakes escapes from his cell but runs afoul of two drug smugglers . The FBI is displeased with the lack of progress in the Bay Harbor Butcher case and assigns a deputy director to take over Lundy's role in the investigation . Angel is arrested for the sexual assault of Lila, who offers to drop the charges if Dexter will resume their relationship . Debra investigates Lila's past and discovers that she is an illegal immigrant . Meanwhile, using Dexter's global positioning system, Lila discovers the cabin in the swamp, where Doakes is being held . </Td> </Tr> <Tr> <Th> 24 </Th> <Td> 12 </Td> <Td> "The British Invasion" </Td> <Td> Steve Shill </Td> <Td> Story by: Daniel Cerone & Melissa Rosenberg Teleplay by: Daniel Cerone </Td> <Td> December 16, 2007 (2007 - 12 - 16) </Td> <Td> 1.02 </Td> </Tr> <Tr> <Td_colspan="7"> Lila finds Doakes imprisoned in the cabin, and realizes that Dexter is the Bay Harbor Butcher . She ignores his pleas for help, and kills Doakes by setting the cabin on fire . Doakes is found dead, and because the evidence of the Bay Harbor Butcher killings indicates him as the criminal, the case is closed . Debra and Lundy try to resolve their relationship problems and Dexter reconciles with Rita . When Lila threatens Rita's children, Dexter realizes that he needs to find a solution to Lila's obsession with him . After Lila attempts to kill him, Dexter follows her to Paris and kills her . </Td> </Tr>

Who does dexter frame as the bay harbor butcher