There is a single flashback in this episode, featuring immortals Duncan MacLeod and Kiem Sun having a reunion in China. No actual date is provided for the event. Various supplementary materials for the series have dated it to either 1780 or 1880. Their first meeting is said to have taken place 100 years prior to the reunion. Later episodes "The Samurai' and "They Also Serve" established that Duncan was in East Asia c. 1780, visiting Japan and Mongolia.
The temple where Duncan meets his old friend is used again as a filming location in season 2's Revenge of the Sword (1993).
Dustin Nguyen's first appearance guest starring in the Highlander television series.