* ''The Conqueror'':
** Gaia, turned into a mortal, tells Ma-Ti she must go to the missile base, where the other Planeteers are making a mess. Cue this exchange:
-->'''Ma-Ti:''' You cannot go there now! Your life would be in danger!
-->'''Gaia:''' I know. But peace requires a brave heart.
** Also, the scene where the Planeteers turn away from Zarm:
-->'''Gi:''' I'm sorry... everybody.
-->'''Zarm:''' What is this sentimental slop? Where are my young conquerors?
-->'''Kwame:''' I am not a conqueror. I am a Planeteer. (''throws his gauntlet to the ground'')
-->'''Zarm:''' Kwame! Someone else will rule if you do not. This world needs an iron fist.
-->'''Linka:''' ''That'' is the last thing it needs. I have felt really miserable since I had this ''thing'' on! (''throws her gauntlet at Zarm's feet'')
-->'''Gi:''' A ''peace'' maker must have a great courage. (''throws her gauntlet at Zarm'')
-->'''Zarm:''' Wheeler! Listen to me! Follow me; you can rule the world!
-->'''Wheeler:''' I don't want your kind of world! (''throws his gauntlet away'')
* ''Tree of Life'': Dr. Blight sprays herself with a magic sap that grants her superpowers even greater than Captain Planet's. While curb-stomping Captain Planet a second time, Wheeler suddenly tackles her. Of course, it has no effect and she easily throws him away. Blight notices her powers are waning and tries to refuel on more sap, but can't find it. Wheeler reveals he picked her pocket, then sprays Captain Planet with the sap. He gets supercharged and defeats Blight.
* ''Mission to Save Earth Part Two'': the epic way Captain Planet defeats Captain Pollution [[spoiler:who later comes back anyway]].
-->'''Captain Planet''': (''bearhugs Captain Pollution'') EARTH! (''drives them both through the Earth's crust'') FIRE! (''they reach the Earth's mantle'') WIND! (''flies back into the sky, swings Pollution around by his ankle'') WATER! (''throws him into the sea'')
-->'''Captain Pollution''': (''Captain Planet retrieves him'') Oh, have a heart, Captain Planet!
-->'''Captain Planet''': Oh, did you enjoy your bath? Well let me hang you out to dry! (''slams him down'')
* ''Summit to Save Earth Part One'': Gaia going all MamaBear against Zarm for threatening both her Planeteers and the Earth.
* '''Teers in the 'Hood'': [[WesternAnimation/AvatarTheLastAirbender Katara]]'s not the only Waterbender you do not want to get angry. When Gi learns the identity of the gang member who shot and hospitalized her friend, she completely snaps and uses her ring to send him flying up a waterslide and down into a pool where she tries to drown him. BewareTheNiceOnes, indeed!
-->'''Wheeler''': Gi, you don't really want to do this!
-->'''Gi''': ''Yes, I do!''
** Gi going all gangster when she takes the gun off Wheeler and intends to use it on the guy who shot King.
** The end of the episode qualifies, too. The images of civil rights leaders are one the most powerful and serious moments in a kids' cartoon even to this day.
* ''A Good Bomb Is Hard to Find'': Ma-Ti punching out Hitler. [[GeniusBonus If you know anything about one Colin Ross, this becomes all the more epic.]]
* ''In Zarm's Way'': All the battles between the upgraded (and increasingly more ferocious) Boots and Buster.