Back to the Future: Jules and Verne are getting into the April Fool's Day spirit, but unfortunately, at Doc's expense. Thanks to them, a number of his inventions don't work properly. One such case is the Brain Wave Analyzer and when Doc uses it on himself, it (wrongly) states that 99.9% of his brain no longer functions. Seeing no reason to continue being a scientist, Doc pursues other lines of work � failing miserably with each possible job. The distraught Doc temporarily retreats to Cro-Magnon times � a place where he thinks he belongs. However, only Doc can save the day when Marty uses his Environmental Adjuster at a rock concert. It was another one of the inventions that Jules and Verne got into � meaning Marty is about to unknowingly unleash weather threatening everyone in the vicinity.

Starring:

Dan Castellaneta, David Kaufman, Josh Keaton, Mary Steenburgen

Genre:

Animation, Sci-Fi, Family, Adventure