The soft-hearted Planeteers have been collecting homeless animals from around the world, and when Gaia sends them on a trip to return the endangered species to the wild, they find that the animals' habitats are in severe danger. To Gaia's surprise, instead of releasing the animals, the Planeteers return to Hope Island with a Geocruiser so full that Noah would be proud.

Gi, whilst visting a Dolphin research facility, discovers the Dolphins are being used to recover toxic chemicals from a sunken Nazi Warship being used by Hoggish Greedly.

Verminous Skumm unleashes a hoard of Superbugs, an offshoot of boll weevils resistant to pesticide

Panic strikes in a small town when killer bats are reported to be on the rampage. A frightened public sets out to gas an entire bat colony for alleged crimes, and it's up to the Planeteers, and a local bat expert, to prove that these gentle creatures are not bloodthirsty vampires

As part of a traditional quest, one of Ma-ti's Native American friends ventures into the desert to tame a wild horse. Ma-ti, accompaning him, set out, only to be captured by Hoggish Greedly, who has illegally crossed onto Indian land to round up the wild horses for slaughter

The Planeteers join the circus while trying to rescue some stolen pandas.