Captain Planet and the Planeteers (TV Series 1990–1996)

Season 1

1A Hero for EarthA Hero for Earth (15 Sep. 1990)
The spirit of the Earth, Gaia, summons five teenagers to join her in battling ecological destruction and pollution. Their first fight is to keep Hoggish Greedly's oil rig from destroying a coastline.
2Rain of TerrorRain of Terror (22 Sep. 1990)
The Planeteers take on Verminous Skumm, an evil human-rat who thrives in polluted conditions, whose plan is to burn coal in an abandoned factory to create acid rain.
3Beast of the TempleBeast of the Temple (29 Sep. 1990)
A mysterious dragon-like creature rampages through the jungles of Thailand, destroying croplands and terrifying the people. Gi's friend Newalk tells the Planeteers that some believe it is Phi Pok, a mythological dragon-beast. Wheeler learns that it is just a machine Hoggish Greedly has invented to scare the villagers into leaving so he can steal their temple's jewels, but he is captured and must contact the others to stop the theft.
4Skumm LordSkumm Lord (6 Oct. 1990)
Skumm peddles a polluted drink that turns consumers into rodent zombies
5Deadly RansomDeadly Ransom (13 Oct. 1990)
Mad scientist Dr. Blight and radioactivity-dependent mutant Duke Nukem deliver a fake bomb threat to the Planeteers through Blight's smart computer MAL, who arrive and are forced to call Captain Planet. He disables the machine that's supposed to make everything work, but in freeing the Planeteers from a forcefield is captured. The villains say they'll only release him if the Planeteers deliver a lifetime's supply of radioactive waste - in which case not even Captain Planet could do much for the world...
6The ConquerorThe Conqueror (20 Oct. 1990)
Zarm, an alien being, lands on Earth and gives Planeteers iron fists which greatly amplify their powers. The fists corrupt our heroes, and they nearly destroy the Earth in the process. It's up to Ma-ti and Gaia to stop Zarm's evil ploy.
7Last of Her KindLast of Her Kind (27 Oct. 1990)
The Planeteers fight to save the African elephants from extinction as Looten Plunder tries to corner the market in ivory
8The Dead SeasThe Dead Seas (3 Nov. 1990)
Gi is outraged to see Hoggish Greedly using a giant drift-net to illegally fish whatever he wants from the ocean. Kwame is the only one she finds right away to get the news to, and he reluctantly follows her as she goes to fight without waiting for anyone else. They free some animals but the Ecosub is caught in a net and two are captured. They contact Ma-Ti and the others, who rescue them, but Greedly learns their secrets of how they summon Captain Planet and that their powers are absent when he does arrive. While Cap is active but away, ridding the world of the nets,...
9Tree of LifeTree of Life (10 Nov. 1990)
Dr. Blight cuts down a magical tree that contains all the powers of Nature. With this power now at her disposal, even Captain Planet may not be strong enough to stop her from destroying the forest.
10Volcano's WrathVolcano's Wrath (17 Nov. 1990)
Sludge solves the world's trash problem by dumping everything into a volcano, which then erupts.
11Littlest PlaneteerLittlest Planeteer (24 Nov. 1990)
A boy named Jason tries to help the Planeteers fight Dr. Blight's latest creation - a Smog Blob monster. But the challenge may be too much for him to handle.
12A World Below UsA World Below Us (26 Jan. 1991)
A dumping operation threatens an underwater city.
13Plunder DamPlunder Dam (2 Feb. 1991)
Plunder dams an African river, leaving the locals without the food or water the waterway provided
14Meltdown SyndromeMeltdown Syndrome (9 Feb. 1991)
Nukem's radioactive presence at a leaking nuclear power plant triggers a meltdown.
15Smog HogSmog Hog (16 Feb. 1991)
Hoggish Greedly steals a factory to mass-produce horribly polluting vehicles. But the resulting smog goes so far out of control, that eventually Greedly himself has to ask Captain Planet for help in order to save his son's life.
16Polluting by ComputerPolluting by Computer (23 Feb. 1991)
Sly Sludge, Dr. Blight and her computer, MAL, hack into the government's computer system to falsify the Planeteers' records and clean Sly Sludge's background check as he appears to be a committed environmentalist.
17Don't Drink the WaterDon't Drink the Water (2 Mar. 1991)
Plunder, Skumm and Greedly pollute the nation's water supply.
18Kwame's CrisisKwame's Crisis (9 Mar. 1991)
Sly Sludge is dumping trash on an unsuspecting town, but no one cares, which causes Kwame to lose hope in humanity, and therefore his ability to summon Captain Planet. It's up to one little girl to restore Kwame's faith and save the day.
19Ozone HoleOzone Hole (13 Apr. 1991)
Duke Nukem enters Antarctica with stolen factory-equipment, fridges, and ACs to cause chlorofluorocarbons (CFCs) to enlarge the hole in the ozone so he will get the radioactivity he needs to survive. The Planeteers arrive to prevent Earth from suffering for good, but when Linka, Kwame, and Gi are trapped by Nukem, they have to deal with the cold weather and his radiation at the same time, so have to think fast to get out in time to save the planet.
20The Ultimate PollutionThe Ultimate Pollution (20 Apr. 1991)
Looten Plunder provokes tribal warfare so he can sell arms to both sides
21Population BombPopulation Bomb (27 Apr. 1991)
Captain Planet prevents part of a wall breaking and falling on a crowded street in an overpopulated city. Back on Hope Island, the Planeteers learn that the world is very overpopulated and some countries try to slow it down. Wheeler, annoyed at the idea of anyone recommending how many children to have, goes out windsurfing despite an approaching storm. He's blown off-course and is washed up on an island with a miniature city. The inhabitants, genetically-effected mice with human characteristics including overpopulation and its resulting polluted land, capture Wheeler ...
22Mission to Save Earth: Part 1Mission to Save Earth: Part 1 (4 May 1991)
Looten Plunder, Dr. Blight, Verminous Skumm, Duke Nukem, and Sly Sludge team up to defeat the Planeteers by getting powers similar to the ones they have from their rings. Sludge and Skumm send a fake distress-call from an island, then shoot sleeping-gas over the Geocruiser so it crash-lands and they can steal the Planeteers' rings. Before they can take the Planeteers prisoner as well, though, they find the "deserted" island actually has a soldier's radar-station on it, and he orders them to leave. Blight contacts Commander Clash, posing as a soldier claiming that the ...
23Mission to Save Earth: Part 2Mission to Save Earth: Part 2 (11 May 1991)
Commander Clash joins the Planeteers to stop the eco-villains and Captain Pollution. Second of a two-part episode.
24Two Futures: Part 1Two Futures: Part 1 (18 May 1991)
A disgruntled Wheeler uses a time machine to travel to the past to stop himself from becoming a Planeteer. First of a two-part episode.
25Two Futures: Part 2Two Futures: Part 2 (25 May 1991)
Wheeler gets his wish to see how those who were once his fellow Planeteers are living, but discovers life really has changed for the worse without him as part of their team. Gi lives alone on her island trying to rescue the last few fish species from extinction, angry with humanity in general since too few became Planeteers and the group failed. Kwame feels forced into, and accepting of, a position of constant battle to defend the few trees he alone planted from land-developers, thinking since nobody helped him before he can't possibly undo damage on a global scale. ...
26Heat WaveHeat Wave (1 Jun. 1991)
Dr. Blight attempts to destroy Hope Island by turning it into a huge greenhouse surrounded by a force field. Gaia and the Planeteers are trapped inside the force field, and cannot summon Captain Planet. Will this be the end of them?