4 Into the Wild Green Yonder

The Planet Express crew visits Amy's parents, Leo and Inez, who are destroying the "old" Mars Vegas and constructing a more extravagant one. A group of eco-feminists, led by Frida Waterfall, protesting the destruction of the environment, leads to an accident wherein a piece of Frida's jewelry lodges inside Fry's brain granting him telepathy. The destruction upsets Leela, but Leo asserts that he has received environmental clearance — from a bribed Professor Farnsworth. Unconvinced, Leela saves a Martian muck leech, the last of its species, from the site.