In the episode "The Tide", Caine falls in love with Su Yen, played by Tina Chen, the daughter of a philosopher and author with whom Caine is familiar. The town Sheriff recognizes Kwai Chang from the Wanted Poster. While in custody, Kwai Chang is wounded. He escapes, and Su Yen hides him in a cave at the beach. There are scenes of passionate kissing, after which Su Yen is shown waking on the sleeping mat and reaching out for Kwai Chang, only to find that he is not there. The scenes strongly indicate that Kwai Chang and Su Yen had made love. It turns out that Su Yen, however, seeks to trade Caine to the Emperor in exchange for her father who is imprisoned in China.