4x4 - Spider-Man

When a savage creature begins attacking people in New York, Black Cat tries to convince Spider-Man that he needs her help to stop it. All clues point to the creature being Kraven The Hunter, but sleuthing by Debra Whitman, Flash Thompson, and the Black Cat solves the case. The beast, Calypso, is related to Kraven, but the Hunter wants to capture and cure her.