Futurama Just Cured “A.S.S.” — But Not With Rat Juice

Professor Farnsworth’s memory has been going haywire — he forgot Cubert, forgot his own bath was running, and even forgot his signature “Good news, everyone!” catchphrase mid-sentence. Zoidberg’s diagnosis? The dreaded Absentminded Scientist Syndrome (A.S.S.). So in Futurama Season 14, Episode 4, “Lords of the Ring,” the Planet Express crew races to a rat-ruled planet for a cure — and the ending isn’t what anyone expected.

What Actually Happens

The crew heads to Vivisectoid Alpha, where Farnsworth once ran a rat lab. A century has passed in rat-time, and the rodents have evolved into an intelligent, Wheel World-ruling civilization that turns the entire Planet Express crew into lab rats — flipping the show’s classic animal-testing gags on their head.

Everyone assumes the professor needs the rats’ “brain juice” (cerebral fluid) to reverse his memory loss. He doesn’t. Farnsworth improves simply by being run through a maze, just like the rats he once studied. The cure was the experience itself, not the rat fluid.

Futurama Recap Table

Beyond the memory-loss plot, the episode packs in a Steamboat Willie parody and sharp satire of animal experimentation — classic Futurama absurdity wrapped around a surprisingly sincere point about empathy. For the show’s full broadcast history, see Futurama on Wikipedia.

If you’re keeping up with this season, TechnoSports has more animated series episode breakdowns and streaming guides to help you track every new drop.

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