Antibody

An episode of the Fox Kids Network animated series Silver Surfer, based on the Marvel Comics character created by Stan Lee & Jack Kirby in The Fantastic Four. 

Silver Surfer: The Animated Series was a 13-episode, 30-minute animated television series that ran on Fox Kids Network in 1998. It was not as successful as other Marvel Comics based animated series of the time, such as X-Men: The Animated Series (76 episodes, 1992-1997), Spider-Man (1994-1999, 65 episodes), Fantastic Four and Iron Man (The Marvel Action Hour, 1994-1996, 26 episodes each), and The Incredible Hulk (1996-1997, 21 episodes). It featured a mix of traditional cel animation and early computer animation.

The eighth episode of the series, "Antibody," featured a story written by Harlan Ellison, with a script by creator Larry Brody and Michael Steven Gregory. In the story Galactus, the planet-eating celestial power and the being who originally created the Silver Surfer, is dying. He seeks his former herald's help in saving his life, which the Surfer agrees to in exchange for information about his homeworld Zenn-La. While Galactus' current herald, Nova, protects Galactus from attacking ships, the Surfer travels inside Galactus' body to destroy the disease that is killing him.

In the years after it aired the idea of adapting the original story into comics form was mentioned several times, involving artists like Joe Quesada and John Romita Jr. For more information on these see the entries on "Silver Surfer, Marvel Knights" and "Doctor Strange, Marvel Knights."