The Fonz and the Happy Days Gang (1980)

S5E19 Looking Death in the Eye

In a future setting, an elderly Joxer discovers an ancient scroll revealing how Xena and Gabrielle outsmarted the Fates, triggering the twilight of the gods. It also recounts the tale of how both warriors were believed to have perished for 25 years, during which their daughter, baby Eve, vanished without a trace.