Nightstick

Nightstick, also released as Calhoun, is a 1987 Canadian-American made-for-television action film which had theatrical release and later released to video and to theaters outside the United States. Directed by Joseph L. Scanlan, the film stars Bruce Fairbairn, Kerrie Keane, Leslie Nielsen, Robert Vaughn, and John Vernon.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.