Highlander: The Series (1992) : 5x5

Of all the gin joints in all the towns in all the world, Dawson's high school sweetheart BETSY walks into his. Meanwhile, MacLeod's got his hands full with Johnny K, a teenaged mobster wannabe when MacLeod knew him during Phrohibition who's now a cold-blooded assassin. The only rules Johnny K knows are the rules of the street, and MacLeod's going to have to play by them if he wants to keep his head.