EcoHaven Ooze is the fourth episode of the fifth season of Cyberchase. It originally aired on November 29, 2006.
- Widget (voiced by Gilbert Gottfried)
- Baskerville (voiced by Juan Chioran)
- Olga (voiced by Annie Walter)
- Trashinator (voiced by Phil Williams)
When Hacker discovers that the liquid ooze that feeds the animals of EcoHaven also gives him a super energy boost, he decides to drain the pond and take the ooze home. He builds a fort around the pond, so the CyberSquad must figure out a way to get in without being noticed. They take inspiration from the Greek myth of the Trojan Horse and build a giant “Trojan Ducky.” After testing a model of their invention to be sure it works, they hide inside the duck, and fool Delete into taking them to Hacker. But how will they stop Hacker’s nefarious plot?
- This is the last appearances of Widget, Chewcrocka, Junior and the rest of the animals from the episode "Echohaven CSE".
- This is the last episode to feature Echohaven in the series.
- In this episode, the end credits were sped up yet the audio of the instrumental version the show's theme song was normal as always. Due to Len Carlson's death.
- This episode aired as part of the "My Big Idea Marathon."
- This episode was given out as a reward for a certain time.
- This is Len Carlson's last episode before his death.
- For Real Segment: "Harry Talks Trash"
- This is Len Carlson's last episode as the voice of Buzz, before his death. Carlson died on January 26, 2006. This episode was produced before he died.
- Main article: EcoHaven Ooze (transcript)