Gi and Ma-Ti investigate polluted areas of water, suspecting Sly Sludge is pouring garbage and sewage there, and Ma-Ti is pained from hearing many cries for help underwat ...

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. ...

Greedy garbageman Sly Sludge has found a get-rich-quick scheme where he rids the world of their trash by placing it on Laipuno Island - and claims he's reducing it with a ...

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 ...

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 ne ...

Kwame is shocked to see greedy businessman Looten Plunder and his right-hand man Argos Bleak are poaching Africa's elephants. Wheeler considers the trip an opportunity to ...

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 i ...

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 ar ...

Verminous Skumm creates a substance that, when placed in water, will mutate its drinker into a rat-resembling character who willingly serves him. The Planeteers go to sto ...

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 s ...

Verminous Skumm, a mutant part-man/part-rat, takes over an abandoned coal factory to create acid rain to terrorize the people of a nearby town. Ma-Ti, after being unable ...

The Spirit of Earth, Gaia, is woken from a century-long sleep at Hope Island to discover that Earth is dying because of humans' carelessness in deforestation, pollution, ...

On Troy's last day at Greendale, before his big adventure, Abed hosts a game of hot lava. Losing troy hits the study group hard, especially Abed, resulting in a full blow ...

Pierce ends up in the hospital after ingesting mysterious pills and believes he's dying. The study group gathers at his bedside as he imparts his final words of wisdom an ...

When Moretti goes missing on the day of her wedding, Pierce and Donnie set out to find her. A dangerous person from Pierce's past abducts Kate. ...

After a student is found murdered, Pierce tries to find the killer while defending the victim's boyfriend, who is believed to be mentally ill and guilty of the crime. Mea ...

Pierce and Moretti undercover an international scandal while investigating the murders of a Bangladeshi diplomat and a Chicago reporter. ...

Daniel and Kate are called by another agent to help in a case involving the murder of a whole family. The agent suspects an animals rights activist group because the fami ...

After Dr. Daniel Pierce suffers a traumatic injury, his father and his friend must decide if they should allow him to undergo a high-risk surgery; Pierce begins to questi ...

Donnie wakes up next to a dead Shelby. He claims to have to memory of what happened. He's arrested and placed in jail. Kate doubts his story especially when some people s ...

When an FBI agent is shot by a sniper, Kate asks Daniel to help because the shooter left something behind that's strange. When Daniel looks at it he thinks the sniper was ...

The body of an FBI agent who went missing a few years ago is found. The agent was the one who replaced Kate when she moved to Washington. Daniel initially refused to work ...

A gallery owner dies while having a seizure caused by a video installation; Pierce must re-examine his relationship with Natalie. ...

When an infant is reported stolen, Moretti hunts down the kidnapper and makes a very bizarre discovery. As Pierce and Moretti investigate a related murder, they find that ...

When renowned Neuroscientist Landon Jennings is found dead, Moretti and Pierce must figure out how someone could have gained access to his impenetrable study in order to ...

Pierce and Moretti are investigating the murder of a girl. They learn that a woman claims to be the one who killed her and she also claims to be possessed by the devil. T ...

After a young victim with a developmental disorder is taken hostage in a bank robbery, Moretti brings in Pierce to interview the boy. When they finally track down the cul ...

Pierce and Moretti search for a killer when a prosecutor dies in the middle of a courtroom; Moretti and Donnie make some decisions about their future. ...

Daniel is in Paris enjoying his time with Miranda. But things change when a man who says he's federal agent attached to the embassy, approaches him and asks him to help t ...

Pierce's academic career is threatened when he hallucinates in class. Meanwhile, he, Moretti, and a RCMP officer track a serial killer who is stalking Pierce's former the ...

Pierce receives a tip that the CIA might be assassinating U.S. citizens; one of Pierce's close friends is murdered; Moretti tries to overcome her trust issues. ...

Lewicki's brother shows. He is later arrested for killing a gang member. Daniel tries to help but all the evidence points to him as the killer. Lewicki's so upset that he ...