"Meltdowns and Mayhem"
*After resolving a misunderstanding with the Lava Men at the Project Pegasus facility, the Avengers offer Spider-Man a position on the team as a member-in-training before suddenly having to battle Rhino, Electro, Moonstone and Blackout, who have escaped imprisonment and taken over the nuclear research facility. After the battle, the government forbids the Avengers to enlist Spider-Man, deeming him to be a major security risk.
*Source: SpidermanGeek