Fantastic Four: World's Greatest Heroes

Reed is accused of intentionally exposing the Fantastic Four to the cosmic rays that gave them their powers. It turns out to be a plot by Dr. Doom, and Ben forgives Reed after they save the world from Doom's plan of opening a dimensional portal which will allow monsters to attack New York and destroy all human life.

After kidnapping Ben, Mole Man attempts to get the Thing to join forces with him to create an underground paradise where appearances don't matter.

After destroying a robot, Johnny inexplicably disappears. He finds himself in a stadium filled with aliens, where he has been put on trial for crimes against the Kree Empire, with Ronan the Accuser acting as judge. Meanwhile, Ben attempts to entertain the guests at a charity event. Reed is summoned to act as Johnny's lawyer while Ben and Sue are summoned as witnesses. Unfortunately, Ben and Sue's testimonies fail to help Johnny's case. Johnny is sentenced to immediate execution by robotic creatures. Ben, Sue, and Reed fight the robot executioners, one of which is accidentally thrown into the crowd. Johnny protects a Kree child in the audience from the errant robot, which inspires the crowd to demand that Johnny be exonerated and released. Feeling humiliated at having to appease the crowd, Ronan releases Johnny. The Kree return to their home world whereupon Ronan is banished from the Kree Empire, while the Supreme Intelligence notes that the Fantastic Four may be useful against the Skrull.

Introducing Characters: Ronan the Accuser, Supreme Intelligence, The Kree and Kree Robots

Note: In this episode, the opening theme music has been pitch-shifted to a noticeably lower key.

The four return from extinguishing a fire that Johnny started, with Ben and Sue upset with him. Johnny apologizes, saying that he'll do anything to make it up to them. Doctor Doom switches bodies with Reed by injecting him with something. With Reed stuck in Doom's body, he slowly escapes the confines of Doom's lair. The next day, Johnny wakes up and finds a camera crew in his room. Sue explains that, as payback for yesterday, Johnny must be followed around by 'A Day in the Life' so viewers can find out what a day in the life of the Fantastic Four is like. When Doom, as Reed, tells Sue to cancel his lectures, the three figure out something's up. Reed, as Doom, shows up at the Baxter Building and is greeted by the four. Believing him to be Doom, they trap him. Reed eventually convinces Sue to trust him and together they stop Doom from turning the Baxter Building into a weapon while also switching their bodies back.

Alicia's stepfather acquires a supply of clay irradiated from a fallen piece of Reed's ill-fated space station that allows him to control others as the Puppet Master.

Things take a turn for the worse when Johnny gives his friend Frankie an unauthorized tour of Reed's lab. When Frankie is sucked into another dimension, Johnny goes in after her to prevent anyone from finding out. But as he does so, a small bug comes through the dimensional portal. Susan, Ben, and Reed now have to deal with the bug as it multiplies and slowly destroys the Baxter Building while Frankie and Johnny are trapped in the other dimension and look like they will be killed by worse versions of the bugs. In the end, Johnny and Frankie get back to Earth and the bugs are all put back to where they belong – except for one who remains in an old lady's fridge.

Bruce Banner visits Reed at the Baxter Building. Banner changes into the Hulk and now the Fantastic Four must stop his rampage in NYC and keep him from being captured by Agent Pratt who wants to use the Hulk for his own agenda. In the end, Pratt fails to stop Hulk and the Hulk is loose in the badlands. Otherwise, the Fantastic Four have saved the day again.

Introducing Characters: The Hulk / Bruce Banner, Agent Pratt and General "Thunderbolt" Ross

Skrulls impersonate the Fantastic Four's neighbors in order to collect tissue samples from the Fantastic Four. In the end, Skrull commander Kl'rt tells Ronan the Accuser all samples have been collected for him to begin making the greatest warrior the universe has ever known.

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. The Fantastic Four are assisted by Ant-Man when it comes to getting to the lab and once there their lives are saved with Ant-Man’s help. Introducing Characters: Ant-Man / Henry "Hank" Pym, Rufus the Dog, Rufus' Owner and Ant-Man's Ants

The Mole Man attacks the Baxter Building in hopes of luring the Fantastic Four to his underground lair.

The Impossible Man is brought to Earth by one of Reed's space probes and immediately starts causing trouble for everyone. In the end, the Fantastic Four convince Impossible Man that Earth isn't as fun as he is.

Doctor Doom hijacks one of Reed's experiments aimed at restoring Ben Grimm to human form and causes the Fantastic Four to swap powers with one another.

The Fantastic Four are brought to the Negative Zone where they come face to face with Annihilus. As if that wasn't bad enough, Dr. Doom arrives stealing Annihilus' power source and threatening Earth.

Having acquired their tissue samples in My Neighbor Was A Skrull, the Skrulls now have the technology to duplicate the abilities of the Fantastic Four. Unknown to the Skrulls, Commander Kl'rt, the genius behind the breakthrough, is actually getting help from Ronan the Accuser, who is a Kree, the sworn enemies to the Skrull. Ronan has agreed to help Kl'rt in exchange for revenge against Johnny, for causing his banishment. Using the Kree technology, Commander Kl'rt is changed into the "Super-Skrull". Meanwhile, after hosting a contest to find their biggest fan, the Fantastic Four show the winner, a meek nerd named Rupert, around the Baxter building and are attacked and captured by Super Skrull, minus Ben who is knocked into the harbor. Seeing Rupert in a Fantastic Four costume, Super Skrull believes him to be a new member of the Fantastic Four and takes him as well. On the Skrull ship, Johnny is taken away while Reed and Sue are tortured. Rupert still thinking that it's all an act being put on as part of his prize is horrified when Reed informs him to the contrary. Meanwhile, Johnny is forced to face Ronan the Accuser without his powers and Ronan is enraged by the fact that Johnny doesn’t even remember him. Ben crashes the FantastiCar into the side of the ship and frees Reed, Sue, and Rupert. Johnny tricks Ronan into shooting off the collar that's disabling his powers. Sue, Reed, and Ben battle Super Skrull outside the Baxter building, when Ronan and Johnny fly out of the ship, for all of the Skrull on board to see. While Reed is confused as to why Ronan is there, Rupert points out that it's a super villain team up. Reed then realizes that the reason Kl’rt doesn’t make an army of Super Skrulls is because he doesn’t know how. Skrull technology isn't capable of doing it, so Kl’rt needs Ronan to use Kree technology to do it. But since the Skrulls and Kree are enemies, he could never openly ask for Ronan's help. Skrull forces leave the ship and are about to attack the Fantastic Four when Johnny tells them that he saw Super Skrull plotting with Ronan. Ronan flees with Super Skrull following while he is chased by his own troops. As the Skrull and Ronan fly off, the Fantastic Four thank Rupert for his help and tell him that they couldn't have done it without him.

Introducing Characters: Rupert the Geek

The Puppet Master gets the city to turn on the Fantastic Four by controlling its public officials. Evicted from their home, accounts frozen, property seized, the Four must clear their good names and stop the Puppet Master from taking over the minds of everyone on Earth.

Namor the Sub-Mariner arrives with a decree banning humankind from the oceans. Susan and Johnny go underwater to negotiate, but are taken prisoner in Atlantis. Ben and Reed must fight their way through sea monsters, Atlantean soldiers, and Namor to save their teammates.

Reed finally cures the Thing, but the cure also takes away all of his memories since the formation of the Fantastic Four. When the Mole Man attacks, She-Hulk must fill in for the Thing while the powerless Ben Grimm must find a way to save the day.

Introducing Characters: She-Hulk / Jennifer Walters, The Lava Men, Squirrel Girl / Doreen Green, Captain Ultra / Griffin Gogol, Texas Twister / Drew Daniels, Frog-Man / Eugene Patilio and Flatman / Dr. Val Ventura

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 begins to suspects that these Frightful Four are not the heroes they appear to be.

Introducing Characters: The Frightful Four (The Wizard / Bentley Whitman, Trapster / Peter Petruski, Klaw / Ulysses Klaw and Dragon Man) and Peter Parker

After returning from the past to find out what killed the Dinosaurs, the Fantastic Four return to New York to find that the whole City has been conquered by Doom. They are forced to drop the Fantastic Car's "Time Ring" which allows them to time travel when they are attacked by patrolling Doom planes. They escape and split up, Ben and Johnny go to retrieve the Time Ring from the river where they dropped it, while Sue and Reed go to find Doom. Johnny and Ben are about to go after the ring when Dooms troops get it first, they are then captured by gigantic Doom bots (ironically Johnny was talking about how he would make giant Doom bots if he were Doom). Reed and Sue easily find Doom but are trapped, Doom tells them that he was warned of their powers and was told about the future by a Doom bot that his future self-put on the Fantastic Car and sent to change the past so they never got their powers. Doom then destroys Reed's "temporal stasis device" on his arm the device is the only thing allowing the Fantastic Four to exist in the different timeline. Reed quickly warns Sue to go back to the "Beginning" before he disappears. What’s left of the Fantastic Four escape and retrieve the Fantastic Cars time ring. They attempt to go back 10 minutes to save Reed but Reed's computer "Herbie" warns them that they can't as they must avoid running into or seeing their past selves or else the paradox will supposedly cause "The world to implode". Sue tells Herbie to take them anywhere when they are about to be vaporized by Doombots, Herbie takes them back to the ice age were Johnny accidentally gives mankind fire, setting a caveman's club on fire. The Fantastic Four then realize that Reed meant for them to return to the space shuttle launch, to prevent Doom's robot from changing the past. They return to the past where they find Reed and explain what happens or what will happen. Reed agrees to help and they all start to search for Doom's robot. Right as the shuttle is about to launch they find the Doom bot and fight it below the rockets. The past Reed fires the rockets ahead of time to vaporize the robot. When the Fantastic Four return to the future, Reed returns into existence, having no memory of what happened. They return to New York where everything is exactly the same, except for the statue of liberty now being of Johnny, having given man fire in the past Johnny is now worshiped as a god. As the episode ends Sue already sick of time traveling tells everyone to get back in the time machine while Johnny asks if things can stay that way.

Namor the Sub-Mariner returns, but this time he needs help to defeat Attuma, who has taken over Atlantis. While Reed, Susan, and Ben head off to help free Atlantis, Johnny stays behind and faces an attack on the city from a giant mutant whale.

Introducing Characters: Attuma

After several attacks from Iron Man armors, the Fantastic Four track down Tony Stark. It turns out Doom was behind the attacks, and now the Four have to face both Iron Doom and Iron Man under Doom's control.

Introducing Characters: Iron Man / Anthony "Tony" Stark

During a confrontation with Diablo, Johnny is accidentally exposed to one of Diablo's potions he planned to use to gain control of all the elements. As the days go by, Johnny's powers seem to change. Diablo discovers that the essence of the fire elemental still lives within Johnny. Diablo starts making the power grow within him, so he can then claim it for himself. After Johnny seriously starts to lose control, Ben, Reed, and Sue try to capture him to figure out what’s wrong. Sue continuously fights Johnny out into the city. Johnny knocks her out and is about to finish her until he realizes that he’s actually hurt her, then Johnny finally starts to come to his senses. Realizing that he is losing control of himself, he releases the energy, which forms into a giant fire being. Just then Diablo appears and sucks the Demon back into the magic goblet from where it came. Johnny starts to believe Diablo is a good guy, but just as fast Diablo goes back to his previous plan of taking control of the elements. He succeeds and gains control of the elements, Reed and Ben arrive with Reed's new invention a power disruptor designed to disrupt "whatever type of science Diablo is using" (Reed continues to deny the existence of magic, in spite to his inability to scientifically understand Diablo's power). Reed hits Diablo with the ray and he is stopped, and Reed yells "Take that Magic!" Diablo is defeated and everything goes back to normal.

On request from Ronan the Accuser, The Grandmaster forces the Fantastic Four to battle Ronan the Accuser, Impossible Man, Annihilus, and Super Skrull. The fate of all humanity hangs in the balance as the species of the losers are wiped out. As the matches go on it is revealed that whoever loses the match becomes a trophy for the Grandmaster for the rest of eternity. In the end it's left to a one on one fight between The Thing and Ronan the Accuser, Ronan calls down an energy beam from an orbiting ship giving him incredible strength, to savagely beat The Thing. Ben continues to fight despite being in incredible pain and outmatched. As Ronan is about to deliver the final blow The Grandmaster declares Ben as the winner as he is both strong and brave enough to continue fighting even when it was hopeless. The Grandmaster offers Ben one wish which he will fulfill no matter what. Instead of wishing himself back to normal, Ben wishes for the release of his friends, the villains and to prevent the destruction of the species of the losers. The Grandmaster fulfills his wish but promises that there will be other Contests and that he (Ben) will be back on the contest, regardless of the fact if he will be challenged or not.

Introducing Characters: The Grandmaster / En Dwi Gast

Doctor Doom creates a super Doombot to face the Fantastic Four. The Four try and retrain this robot to be one of the good guys. In the end, Ben becomes the super Doombots friend and names him "Bruiser", but then Doom's control is too strong and the super Doombot captures Susan and Reed. Johnny and Ben must save Susan and Reed, and fight Doom. But when Johnny is captured, Ben is left to fight Bruiser.

Introducing Characters: Bruiser

Terminus, an alien scavenger, comes to steal all of Earth's resources. While the Fantastic Four try to stop him, they realize he may be unbeatable.

Introducing Characters: Terminus