Spider-Man emerges from his grave and stumbles into Kraven's mansion. From the newspapers scattered on the ground, Spider-Man learns that one of his impersonators has been attacking the town for two weeks.
Ned Leeds died not too long before this story, and Peter and MJ married right before it. Two major milestones in Peter Parker's life. This story depicts the third. Way back, since Amazing Spider-Man #15 (vol.1), Kraven the Hunter entered the list of Spider-Man's enemies. Since then, he suffered numerous defeats, and after each one he became more obsessed in catching his ultimate prey. Spidey never considered him much of a danger, cause he was always defeated mostly without any effort.
In this story, however, Kraven succeeds in killing Spider-Man, buries him and takes his place, beating a foe Spidey could barely beat with Captain America's help.
By the way, this is a story where Pete still uses the black costume.
Peter's allucinating. He sees Ned Leeds, and since Ned's dead he believes he's dead as well. He shuts himself out, just to be left alone, and turns into a spider. Dark creatures kill the spider, but he crawls from inside the spider's guts, and claims he's Peter Parker, and he's going to be free. He overcomes his fear and surfaces, thinking in how much he loves Mary Jane.
He's very weak when he comes out of the grave. He staggers to the Mansion, and finds newspapers on the floor, which brief him of what's been going on: he's been buried for two weeks, and Kraven's been out donning his costume and abusing in his name. He knows that Kraven didn't shoot him with bullets, so he supposes he used a potion, or a root, or something like that. He goes crazy for being buried alive two weeks and starts to wreck Kraven's embalmed animals. The two guys who were with Kraven at his funeral show up and he grabs them and asks where Kraven is. They're too afraid to speak, so he drops them and leaves.
Kraven knows he's coming, and he's waiting, with Vermin trapped on an electrified cage.
Peter goes home, and he reunites with MJ. Later, he wakes up, and despite her will, he goes out for Kraven. While he swings, his spider-sense directs him to a house where he finds Kraven.