Fantasy Island (1978)

S4E20 Delphine / The Unkillable

In "Delphine," Mr. Roarke's goddaughter Delphine seeks his assistance to tackle a peculiar dilemma that has arisen in her life. Meanwhile, in "The Unkillable," a scientist along with his assistant stumbles upon a groundbreaking discovery, only to find that it may jeopardize their very existence.