Complete story — includes the ending
Dexter visits Hannah in prison, where she admits to poisoning Debra. Hannah later manages to escape custody with a little help from Arlene. Meanwhile, LaGuerta finds Dexter at home and arrests him. The department is shocked as they take Dexter in cuffs to interrogate. LaGuerta lays out her evidence but is thwarted as Dexter planted it and made it look like LaGuerta framed him. Dexter finds Hector Estrada's ex-wife and tails her to find Hector. Matthews confronts LaGuerta and tells her to apologize to Dexter. LaGuerta confronts Debra with a surveillance video implicating her in Travis Marshall's death that was originally lost. Debra lies to LaGuerta. Dexter breaks into LaGuerta's house and finds a warrant that would tie Debra and himself to Travis Marshall's murder. Dexter decides that the only way out is to kill LaGuerta. He finds and kills Estrada, then lures LaGuerta to the scene to kill her. Worried, Debra leaves Batista's New Years' party, tracking LaGuerta's location and walks in on Dexter about to kill an unconscious LaGuerta next to Estrada's body. As Debra attempts to dissuade Dexter from killing LaGuerta, she comes to and urges Debra to shoot Dexter, but Debra shoots and kills LaGuerta instead.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Dexter season 7. HTML formatting and reference markers removed. · Content license