Episode 61 of "The Sentinel"
s04e04 Dead End on Blank Street

Title: Dead End on Blank Street

Original Air Date: 02/22/1999 on UPN

Director: Don Kurt
Writer: David H. Balkan

Guest Stars: Gary Chalk (Harry Lovejoy), Lesley Ewen (Serena Chang), Alex Carter (Alan Archer), Kirk Acevedo (Ray Aldo)