The estranged husband of Jack Mannion's fencing instructor, Ilene, turns up and causes a scene outside the school and Jack intervenes. Later Ilene phones Jack to say that her husband is trying to break in. By the time Jack arrives at her apartment, the husband has been killed with Ilene claiming self defence. While Jack believes her story, Detective Parras isn't so sure. In another case, Page and Debreno chase a drugs dealer and have a shootout at an ice rink. The dealer escapes and in the follow up investigation, Debreno recognises a junkie as a former classmate, Chris Gunner, from the police academy. Gunner contacts the police for the reward on the dealer and agrees to set him up for arrest.