Cosmic control rods aren't toys to play around with, but someone is using them to create chaos all over Earth! Annihilus comes through the gateway to Earth looking for his cosmic control rod. The Fantastic Four must defeat him and send him back to the negative zone.

From the back of the adventure:

The Cosmic Control Rod Trilogy continues as the FANTASTIC FOUR ventures into the Negative Zone to face off against ANNIHILUS, the Rod's creator. Agents of SHIELD are lost in the anti-matter of the Negative Zone, and it's up to you heroes to save them. Once inside the Zone, you must face the wrathful return of the evil artificial intelligence of QUASIMODO. The final conflict on Annihilus' planet shows that, even weakened, the despotic Spore of Arthros and Terror of the Negative Zone is still one of the most dangerous and powerful villains ever seen. The adventure contains a surprise ally who makes even ANNIHILUS quake as he approaches.

This module contains...

• New technology from the Negative Zone and equipment for the FANTASTIC FOUR including the powerful Astral Command Staff!
• A surprise "voluminous" guest star!
• The return of two of Marvel's greatest villains in one adventure!
• The chance for you to be the first on your block to save the Earth from total destruction!