Fantastic Four: World's Greatest Heroes (2006)

S01E19 Frightful

Title: Sinister Alliance Plot: Klaw, Trapster, Dragon Man, and their enigmatic leader form a fresh coalition in New York, consistently outmaneuvering the Fantastic Four at every turn. However, Reed begins to harbor doubts about the true intentions of this seemingly heroic quartet, suspecting that the Frightful Four may have a darker agenda lurking beneath their façade.