E1 - A Hero for Earth

Aired: September 15, 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.

E2 - Rain of Terror

Aired: September 22, 1990

Skumm and his rat pack threaten to destroy a city with acid rain.

E3 - Beast of the Temple

Aired: September 29, 1990

Greedly and Rigger strip-mine Thailand for rubies.

E4 - Skumm Lord

Aired: October 06, 1990

Skumm peddles a polluted drink that turns consumers into rodent zombies.

E5 - Deadly Ransom

Aired: October 13, 1990

Captain Planet is held hostage by Nukem, Blight and MAL.

E6 - The Conqueror

Aired: October 20, 1990

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.

E7 - Last of Her Kind

Aired: October 27, 1990

The Planeteers fight to save the African elephants from extinction as Looten Plunder tries to corner the market in ivory.

E8 - The Dead Seas

Aired: November 03, 1990

Greedly and Rigger plot to empty the oceans of fish.

E9 - Tree of Life

Aired: November 10, 1990

Blight gains powers from the "Tree of Life" and threatens to use her new strength to destroy the redwood forest.

E10 - Volcano's Wrath

Aired: November 17, 1990

Sludge solves the world's trash problem by dumping everything into a volcano, which then erupts.

E11 - Littlest Planeteer

Aired: November 24, 1990

A little boy helps battle a smog monster.

E12 - A World Below Us

Aired: January 26, 1991

A dumping operation threatens an underwater city.

E13 - Plunder Dam

Aired: February 02, 1991

Plunder dams an African river, leaving the locals without the food or water the waterway provided.

E14 - Meltdown Syndrome

Aired: February 09, 1991

Nukem's radioactive presence at a leaking nuclear power plant triggers a meltdown.

E15 - Smog Hog

Aired: February 16, 1991

Greedly creates a pollution-intensive car but his own son becomes a victim of the resulting smog and pollution.

E16 - Polluting by Computer

Aired: February 23, 1991

Sludge and Blight break into government computers and transform all national parks into toxic waste dumps.

E17 - Don't Drink the Water

Aired: March 02, 1991

Plunder, Skumm and Greedly pollute the nation's water supply.

E18 - Kwame's Crisis

Aired: March 09, 1991

A depressed Kwame leaves the Planeteers when no one seems to care that Sludge is burying a small town in garbage.

E19 - Ozone Hole

Aired: April 13, 1991

Nukem decimates the ozone layer so he can feast on ultra-violet rays.

E20 - The Ultimate Pollution

Aired: April 20, 1991

Looten Plunder provokes tribal warfare so he can sell arms to both sides.

E21 - Population Bomb

Aired: April 27, 1991

Wheeler is stranded on an island of humanoid mice on the brink of population overload.

E22 - Mission to Save Earth (1)

Aired: May 04, 1991

The teens cross paths with Cold Warrior Commander Clash, but their true opponent is Captain Pollution, a creation of Blight's.

E23 - Mission to Save Earth (2)

Aired: May 11, 1991

Commander Clash joins the Planeteers to stop the eco-villains and Captain Pollution.

E24 - Two Futures (1)

Aired: May 18, 1991

A disgruntled Wheeler uses a time machine to travel to the past to stop himself from becoming a Planeteer.

E25 - Two Futures (2)

Aired: May 25, 1991

Wheeler's attempt to keep his former self from joining the Planeteers has grave consequences for the planet.

E26 - Heat Wave

Aired: June 01, 1991

Blight creates a mini greenhouse effect over Hope Island, threatening Gaia's life.