Back to back Doc Ock! First one he helps Blackie (who is owed money by Betty Brant’s brother, Bennett) escape but is foiled by Spider-Man. They both get away from the police. Bennett is murdered accidentally by Blackie in the fight with Spider-Man and Pete can’t reveal his secret.
Ock captures Betty and Spidey is too weak to save her, defeated and unmasked, but since he didn’t put up a fight nobody thinks it *really* was Spider-Man. The rematch goes badly for Ock and he is captured.
Kind of a happy ending, although Betty has some Spidey issues.