Penny infiltrates a school for super villains in training where she becomes friends with Mal, one of the students.

Brain is turned into a monster in London after Talon spills some sort of chemical on him.

With Claw out of town Talon takes over MAD and begins destroying communication towers.

Penny and Talon both race to find the City Sinker in the lost city of Atlantis.

Dr Claw attempts to steal the world's largest coin (The Giganto) in order to hypnotize the population of New York.

After almost getting killed by a missile, Penny finally calls Gadget out for his incompetence and always putting her in danger, but she is driven with guilt. Meanwhile, Talon and Claw create a clone of Penny to destroy Gadget.

Gadget and MAD agent Sue Donym go on a date, each trying to uncover secrets from the other.

Talon shrinks himself in order to steal Gadget's schematics.

Everyone must go without technology when a tech nullifier is set up in New Zealand.

MAD plans to cause a Hawaiian volcano to erupt to blot put the sun.

MAD sets out to create a Broadway show with the goal of ruining all musicals.

MAD sets out to deface as many world landmarks as possible in a competition with Baron Von Steeltoe.

In an attempt to steal HQ's passcodes Talon switches MADcat and Brain's minds.

Penny and Gadget are trapped in HQ's Holoroom with Talon in control.

Gadget enters a Japanese gameshow with MAD Cat as the host.

Mad tries to sink the pyramids of Giza and Gadget must stop them.

Talon is sent back in time to help Dr. Claw become a better villain.

When MAD's latest mission in Siberia threatens to bring about a new ice-age, Gadget and Penny must team up with their Russian counterparts, Comrade Multi-Use-Tool and his niece Pasha.

As Gadget drives the HQ bus to an annual retreat Talon plants a booby trap on it.

Claw sends Talon to steal a dinosaur egg so he can clone an army of dinosaurs.

Talon disguises himself as Assistant Chief McFibber and infiltrates HQ.

MAD uses special drones to silence people's voices, starting with opera singers.

Talon steals a mutagen that causes plants to grow to enormous size.

When HQ runs low on funds, Gadget sets out to raise money.

Talon disguises himself as a Sweetie Scout in an effort to sneak into HQ and steal an invisibility spray.

MAD sets out to stop a peace summit between two nations.

Talon tries to steal Professor Von Slickstein's new AI, Mr. Security, but instead causes the it to go berserk.

MAD begins kidnapping the world's greatest chefs, so Gadget opens a restaurant to act as bait.

When MADcat begins consuming large amounts of catnip, Claw sets out to wipe out all plants, including catnip.

MAD steals bells from across the globe so they can build a device to level London.

When Gadget accidentally uses a time diamond to send himself, Brain, Penny and Talon back to the middle ages, Penny and Talon compete for possession of the gem.

Claw sends a robotic mole to spy on the HQ company picnic.

Claw enters MADcat in the Metro City talent show hoping to win the prize, being mayor for a day.

Talon impersonates Gadget's former band partner so they can record a new song for Claw. Meanwhile, Penny goes on her first solo mission.

Claw demands tunnels be dug under Metro City so that he can avoid gridlock traffic.

MAD searches for the key to immortality in Dracula's castle in Transylvania.

MAD infects HQ with a head-cold zombie virus.

Claw develops a brain-drainer, which Talon uses to steal other people's intelligence and make himself smarter.

MAD lures Gadget into an escape room, hoping to televise his demise to the world.

Claw wants a magic crutch that causes bad luck so he can curse all his enemies.

Claw uses moonlight to create a ray that causes people to experience their worst fears.

When Gadget needs to be recertified, MAD tries to make sure he fails the recertification test.

Claw develops a helmet that will raise the intelligence of any animal and wants it used to create an alligator army.

MAD uses a weather machine to try and conquer the world.

MAD sets out to capture a long-crashed alien spacecraft.

When Talon is caught, Claw replaces him with Penny's friend Mal.

When Penny interferes with Talon's attempt to collect cosmic energy from Stonehenge, both Penny and Talon are given cosmic powers.

Claw sets out to end Christmas by unleashing cheer-destroying nanobots at a tree lighting ceremony.

Talon is sent to the North Pole to acquire a newly-discovered, unclassified, biological organism.

Talon infiltrates HQ while undercover, hoping to get HQ's missile defense codes from Kayla.

MAD sets out to steal a size modification ray, but accidentally makes MADcat grow to giant size.

MAD attempts to steal a gravity nullifying device.

Claw sends Talon to steal a duplicating device, which Talon uses to duplicate himself.

MAD begins stealing the "star power" from celebrities.

Talon impersonates a panda to disrupt peace talks between two countries.

MAD tries to mine a highly magnetic ore from the forest where Gadget and Penny are camping.

MAD sets out to hijack Sir Owen Barnstormer's new Ultra Blimp Mark II and take its cold fusion power source.

MAD tries to the Oracle of Delphi so they can use her ability to see the future.

MAD sends out a hypnotizing image on every screen in the world.

Talon disguises himself as Penny, while making Penny look like a MAD agent.

Claw develops a device to make people old, making himself younger by comparison. Penny becomes a senior during a fight with Talon.

Talon kidnaps a wealthy old lady and tries to convince her to make him her heir.

MAD steals all the water in Metro City.

The MAD Weed-whacko has been rehabilitated, but Claw wants him to destroy Central Park in New York.

Gadget is assigned to transport Jacques Crankcase to prison, via a hover-train.

MAD infiltrates HQ's Missionball Ball with a weapon that forces people to dance.

MAD attempts to find a superweapon in the Great Sphinx of Giza.

MAD tries to redirect a comet so that it crashes into Metro City.

Penny breaks her arm and is sent to a hospital where a MAD plot is afoot.

When Talon frames Gadget for shoplifting and gets him thrown in prison, Penny must break the rules to get him out.

MAD uses a memory eraser device to try and defeat Gadget.