Widget reluctantly travels to Earth and he saves a whale caught by some poachers.

On a school trip, Kevin and Brian adopt a gorilla named Johnny Africa.

On a trip with Kevin, Brian, and Kristine, Widget assumes the zookeeper of a baby whale named Kona is hurting her; while really the zookeeper is just doing his job.

Widget travels to the jungles of Africa where evil poachers, Bob and Betty try to capture an elephant for his tusks.

Widget travels to Australia to ensure its red kangaroos enjoy their new habitat.

Construction men are building a giant highway through the rainforest, cutting down special trees used by the natives as medicine.

A trip to the Mediterranean Sea gets Kevin, Brian, Kristine, and Mega Brain captured by fishermen, while Widget has to help out a cattle farmer.

Dr. Dante presumably has invented a machine to solve the issue of toxic waste disposal. Widget wonders about that when problems arise when the barrels containing the waste are reused.

Widget gets to be the children's substitute teacher of biology and zoology after their regular teacher keeps having car trouble.

The evil Mega Slank steals animals to bring back to his planet.

A careless mistake by Mega Brain sends Ratchet, Widget's alter ego, out to trash.

Widget teaches the city people how to recycle.

Widget, Mega Brain, Kevin and Brian travel to Planet Scraboolie which is completely polluted and used to be beautiful. Widget wants to ensure the same thing does not happen to Earth.

Widget's evil twin brother Ratchet captures Mega Brain and turns him into an evil brain.

After a video recording of Widget is sent into space, ringmaster brothers Film Flam McSham capture Widget to be in their intergalactic circus.

Widget, Mega Brain, Kevin, and Brian find that Dr. Dante is in the arctic with a supposedly harmless machine. Widget finds out that the machine is melting all the glaciers.

Mega Slank goes to Australia and hypnotizes animals to run his fast food company.

Widget and friends try to stop mysterious rain that mutates anything into giant monsters.

Widget travels to Tibet and unexpectedly meets an old World Watcher.

Bob and Betty are capturing animals to make a movie.

Brian is accidentally turned into a wolf by Mega Brain.

A race of lollipop people seek water and goes to a greedy businessman who is draining out Earth's water.

Evil Mega Slank steals many of Earth's most magnificent landmarks for his Intergalactic Garage Sale.

The Watcher Elders inform Widget that Bizarre Brain is causing mayhem and Mega Brain is afraid to help.

Mega Slank is capturing animals from the vet to run his machine.

Widget tries to reunite a Galapagos turtle couple from a group of pirates.

Ratchet and his minions steal money intended for the Help the Earth foundation and Ratchet keeps the money to himself.

Mega Brain suggests that Half Pint could have fun at an intergalactic carnival. However when they get there, it is full of strange people and things.

When Half Pint goes to stay with Widget, he gets into lots of mischief with his Teleportation Device.

Mega Slank builds a bunch of Widget robots to pollute Earth.

Film Flam McSham tries to enslave the Squizzlebonk, a gluttonous monster.

Dr. Dante is building a giant park and hypnotizes Widget to think he works for him.

Ratchet challenges Mega Brain to a set of games against a giant brain in which is not too bright.

Poachers Bob and Betty are capturing sea life in the Great Barrier Reef.

On a Watcher Scout trip; Widget, Half Pint, and Brian hear the story of the Urg, an always angry monster that lives on Widget's home planet.

Ratchet has started an intergalactic grudge match and has pitted Widget against a giant alien wrestler.

Widget suggests that Kevin and Brian visit the agricultural fair, held by Flim Flam McSham. Widget is separated from the others when he is shrunken to the size of a mouse.

Ratchet and his mutant minions have stolen an ancient artifact from the museum and it's up to Widget, Mega Brain, and Half Pint to get it back.

Widget, Mega Brain, Kevin, and Brian go to the library and reimagine the stories they read.

A no-good prankster vampire named Bonkula befriends Kevin and becomes a bad influence to him.

Ratchet has stolen everybody's garbage bins and waste to make his own amusement park in the waste dump.

Widget, Megabrain and Half Pint travel to a faraway planet to discover a pair of rose-pink goggles that make the wearer see bad things.

Mega Brain creates a robot named Robo-Zonk, who instantly befriends Half Pint. When Half Pint creates more robots, they go against him and it is up to Widget to stop them.

In an environmental takeoff of A Christmas Carol, Widget is visited by three ghosts, a Viking who engaged in deforestation, an American pioneer who participated in the buffalo slaughter, and a British big game hunter who contributed to extinction of some animals. The ghosts tell Widget that they are punished until they teach a living person of their wrong acts, and Widget sees their chance for atonement when the city's mayor is making a secret deal for a polluting factory to be built.

A parody of Star Wars, Widget goes after Flim Flam after an evil plan by Bizarre Brain spirals out of control. They are helped by Princess Erin, (Widget has a crush on her) who is used against her will by Bizarre Brain to destroy Earth.

Widget and Megabrain travel through time after seeing a news report on how Ratchet made his mutants.

Widget and Mega Brain go to the African rain forest to aide a sick hippo from a poacher.

A fox that lives on the streets is captured by a gang and Widget must stop them.

Mega Slank's mother takes an underwater vacation, and the submarine is ruining the ocean.