Limited Series Deadly Foes of Spider-Man

1 "Punishment and Crime" May 1991 (5/1991) The Beetle forms a new Sinister Syndicate; they fight Spider-Man
2 "The Price of Justice" June 1991 (6/1991) The Sinister Syndicate fails to break Boomerang out of prison
3 "Shattered Dreams" July 1991 (7/1991) Boomerang, Shocker and Rhino join forces to get revenge on the Beetle
4 "While the City Screams!" August 1991 (8/1991) Two factions of the Sinister Syndicate battle; Spider-Man works to restore order