Nash Bridges S04 E06 The Tourist

"Crime fighter by day. Lady killer by night"

Nash and Joe are on the trail of a renowned assassin who has come to San Francisco to kill FBI special agent David Katz. Lisa Bridges returns from Paris and announces she's engaged to marry a famous French chef named Henri, but there's a problem; Nash and Lisa's divorce was never finalized--they're still married. The new S.I.U. is introduced.