When the Watcher is murdered the Fantastic Four must join forces with the rest of the world's heroes to find out who did it. Prepare as the Fantastic Four join the investigation of Marvel's biggest murder mystery yet--Original Sin... Everybody has one.

When the Watcher is murdered the Fantastic Four must join forces with the rest of the world's heroes to find out who did it. Prepare as the Fantastic Four join the investigation of Marvel's biggest murder mystery yet--Original Sin... Everybody has one.