The team investigate the death of alleged arsonist Rod Barrett. Detective Sparks - now the community officer for the area Barrett was found in - returns to Homicide and is paired with a very reluctant Allie.

Disgraced former cop Gary Beck is shot dead at his mother's funeral, and Superintendent Terry Jarvis was there to watch it in living colour. To solve this case Duncan will have to work closely with Jarvis, but past antagonisms may compromise Jarvis' safety when Duncan is assigned the task of protecting him from a killer. Will Duncan be able to put the past behind him and defend the man responsible for the death of his fiancée?