Watch Fantastic Four: World's Greatest Heros

Terminus, an alien scavenger, comes to steal all of Earth's resources.

Doctor Doom creates a super Doombot to face the Fantastic Four.

The Grandmaster forces the Fantastic Four to battle Ronan the Accuser, Impossible Man, Annihilus, and Super Skrull.

During a confrontation with Diablo, Johnny is exposed to a potion that makes him more powerful.

After several attacks from Iron Man suits, the Fantastic Four track down Tony Stark.

The Sub-Mariner returns, but this time he needs help to defeat Attuma, who has taken over Atlantis.

The Fantastic Four return to New York to find that Doom has taken over the city and due to a change in history, they never got their powers.

The Wizard, Klaw, Trapster, and Dragon Man are the new team in town saving New York always one step ahead of the Fantastic Four.

Reed finally cures the Thing, but the cure also takes away all of his memories since the formation of the Fantastic Four.

Doombots invade the Baxter Building in the middle of the night.

Namor the Sub-Mariner arrives with a decree banning humankind from the oceans.

The Puppet Master gets the city to turn on the Fantastic Four.

The Skrulls now have the technology to duplicate the abilities of the Fantastic Four and change their Commander Kl'rt into the Super-Skrull.

The Fantastic Four are brought to the Negative Zone where they come face to face with Annihilus.

Doctor Doom hijacks one of Reed's experiments.

The Impossible Man is brought to Earth by one of Reed's space probes and immediately starts causing trouble for everyone.

The Mole Man attacks the Baxter Building.

One of Reed's microverse experiments causes the Fantastic Four to shrink putting them at risk when H.E.R.B.I.E. mistakes them for vermin and tries to exterminate them.

Skrulls impersonate the FF's neighbors in order to collect tissue samples from the FF.

Bruce Banner visits Reed at the Baxter Building. Banner changes into the Hulk and now the FF must stop his rampage in NYC.

Things take a turn for the worse when Johnny gives his friend Frankie an unauthorized tour of Reed's lab.

Alicia's stepfather acquired a supply of irradiated clay and uses it to control others.

Doctor Doom switches bodies with Reed, and Reed must stop him before he destroys the FF and turns the Baxter Building into a weapon.

Johnny is put on trial by the Kree and Ronan the Accuser acts as the judge.

The Mole Man is back and kidnaps Ben to try and join forces with him.

Reed is accused of intentionally exposing the FF to the cosmic rays that gave them their powers.