Ironside - Season 4 - Eps 7: Check, Mate: and Murder (1)
In Canada for a conference, Ironside and the team get caught up in a spate of bombings, courtesy of Quebec separatists; one of them the son of an old girlfriend of the Chief's. When one of the bombings proves fatal, Ironside suspects that there is more going on than just terrorism; and he soon links the killing to a famous stolen chess set.
About Ironside

Title: Ironside
First Air Date: 1967-03-28
Last Air Date: 1975-01-16
Status: Canceled
Rating: 6.8/10 (from 64 votes)
Language: EN
Seasons: 9
Total Episodes: 191
Network: NBC
Genres: Crime, Drama, Mystery
Production Companies: Universal Television, Harbour Productions Unlimited
Synopsis
When an assassin's bullet confines him to a wheelchair for life ending his career as Chief of Detectives, Robert T. Ironside becomes a consultant to the police department. Detective Sergeant Ed Brown and policewoman Eve Whitfield join with him to crack varied and fascinating cases. Ex-con Mark Sanger is employed by the chief as home help but eventually becomes a fully fledged member of the team also. Officer Whitfield leaves after 4 years service, and is replaced by Officer Fran Belding.
Cast

Raymond Burr
Robert Ironside

Don Galloway
Ed Brown

Don Mitchell
Mark Sanger

Barbara Anderson
Eve Whitfield

Elizabeth Baur
Fran Belding