1. The Headmen/Nebulon story arc - Defenders #31-38, Annual #1
2. "Who Remembers Scorpio?" - Defenders #46-50
3. Avengers/Defenders "War" - Avengers #115-118, Defenders #8-10
4. Parallel Earth storyline and its epilogues - Defenders #112-117
5. Secret Empire - Defenders #122-130