Judy Powell, who is introduced in this episode as Peter's new partner, mentions at one point that her sister was Kira Blackmore, seen in the episode 'Shadow Assassin'. With this recollection, there is a brief flashback to the events of that episode.
It is revealed that Caine carries a bullet inside him from an altercation in the past.
There is a brief flashback of scenes from the season 1 episode 'Challenge' when Caine is aboard the boat.
' Six Months Later ' flashes on the screen at the beginning of the episode after a replay of the final moments of ' Retribution (2) '.
The closing moments of this episode, which show Caine leaving Chinatown and crossing a grassy hill, may have been put into this episode for two reasons: a salute to the original Kung Fu series and closure for the show in case it was not renewed for another season.
When Blaisdell returns from a week's absence with his right arm in a sling from a bullet wound and offering no explanations, it could be inferred that the injury was as a result of his doing mercenary work outside his police duties.
This is the first episode where we see Kwai Chang Caine dodge a bullet.
Steadman is first mentioned even though he does not appear onscreen until five episodes later (Dragon's Wing).
This is the first episode that Kwai Chang Caine puts out a candle flame using The Hand of a Thousand Bells.
Peter is actually quoting George Malkovitch from Sunday at the Hotel with George
when he says, "Heroes don't die young, they die stupid."
During the episode, there is a flashback to "The Lacquered Box" (Episode 14), which hadn't aired yet.
When Caine recalls the destruction of the temple in 1978, part of the recollection is of the fight between Tan and himself with Tan receiving extensive facial wounds as a result. In the present, Tan wears dark sunglasses at all times to hide the scars of the fight.
If one watches closely, it can be seen that the license plates on cars have all digits blurred out. This is done throughout the series to hide the fact that many of the scenes were shot in Toronto, Canada and not the unnamed US city the show is set in.