The two I'm aware of are both creations of writer/artist Scott Dutton, who had worked on a Black Scorpion story in 1991. It was as a result of looking for more information about that character that I landed on Mr Dutton's site.
The first character is simply named Three and is said (by the creator) to be a mix of Batman and Deathstroke. Read more about his background here and have a look below.
Three's adventures take place in the 80's in a town called History in British Columbia. He leads a team called the Historical Society which includes one Captain Canada.
Whether you choose to view one or both, you'll note that a second volume was being worked on as of early last year and the preview art includes features Captain Canada rather prominently. Hopefully that book will be available soon.