Marvel's Ultimate Spider-Man (2012)

S02E25 Return of the Sinister Six

Doc Ock catches Spider-Man and the other heroes off guard with a sudden assault. They quickly realize they’re facing one of their toughest fights of the season as they contend with the reassembled Sinister Six. Meanwhile, Norman Osborn makes a surprising comeback as Iron Patriot, despite Doc Ock’s intentions for him to take a different path.