Spider-Man S03E01 - The Winged Thing/Conner's Reptiles

Spidey discovers the bird-man Vulture robbing a millionaire's penthouse safe and unsuccessfully tries to stop the flying fiend. Spidey is also unable to defeat the Vulture in confrontations at a building construction site and at a military base. 

Spidey swings to Florida again to battle a walking, thinking lizard. This time, the lizard is not a transformed Dr. Conner, but a reptile whose intelligence has been augmented in an experiment by Conner gone awry, and who has kidnaped Conner and holds the ill-fated scientist as captive at a Spanish fort.