September 15, 1990 · 25 min
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.
September 22, 1990 · 25 min
Skumm and his rat pack threaten to destroy a city with acid rain.
September 29, 1990 · 25 min
Greedly and Rigger strip-mine Thailand for rubies.
October 6, 1990 · 25 min
Skumm peddles a polluted drink that turns consumers into rodent zombies.
October 13, 1990 · 25 min
Captain Planet is held hostage by Nukem, Blight and MAL.
October 20, 1990 · 25 min
An aggressive and sneaky Earth spirit named Zarm tricks the teens into disobeying Gaia, sparking a dangerous game that threatens to lead to nuclear war.
October 27, 1990 · 25 min
The Planeteers fight to save the African elephants from extinction as Looten Plunder tries to corner the market in ivory.
November 3, 1990 · 25 min
Greedly and Rigger plot to empty the oceans of fish.
November 10, 1990 · 25 min
Blight gains powers from the "Tree of Life" and threatens to use her new strength to destroy the redwood forest.
November 17, 1990 · 25 min
Sludge solves the world's trash problem by dumping everything into a volcano, which then erupts.
November 24, 1990 · 25 min
A little boy helps battle a smog monster.
January 26, 1991 · 25 min
A dumping operation threatens an underwater city.
February 2, 1991 · 25 min
Plunder dams an African river, leaving the locals without the food or water the waterway provided.
February 9, 1991 · 25 min
Nukem's radioactive presence at a leaking nuclear power plant triggers a meltdown.
February 16, 1991 · 25 min
Greedly creates a pollution-intensive car but his own son becomes a victim of the resulting smog and pollution.
February 23, 1991 · 25 min
Sludge and Blight break into government computers and transform all national parks into toxic waste dumps.
March 2, 1991 · 25 min
Plunder, Skumm and Greedly pollute the nation's water supply.
March 9, 1991 · 25 min
A depressed Kwame leaves the Planeteers when no one seems to care that Sludge is burying a small town in garbage.
April 13, 1991 · 25 min
Nukem decimates the ozone layer so he can feast on ultra-violet rays.
April 20, 1991 · 25 min
Looten Plunder provokes tribal warfare so he can sell arms to both sides.
April 27, 1991 · 25 min
Wheeler is stranded on an island of humanoid mice on the brink of population overload.
May 4, 1991 · 25 min
The teens cross paths with Cold Warrior Commander Clash, but their true opponent is Captain Pollution, a creation of Blight's.
May 11, 1991 · 25 min
Commander Clash joins the Planeteers to stop the eco-villains and Captain Pollution.
May 18, 1991 · 25 min
A disgruntled Wheeler uses a time machine to travel to the past to stop himself from becoming a Planeteer.
May 25, 1991 · 25 min
Wheeler's attempt to keep his former self from joining the Planeteers has grave consequences for the planet.
June 1, 1991 · 25 min
Blight creates a mini greenhouse effect over Hope Island, threatening Gaia's life.
