[ji-] Jimmy Neutron is in the [4] bathroom of the [-(e)n] infirmary where he is trying to harvest 劲 energy of a 力 muscular arm there. He has a special loom hooked up to a generator that he instructs the 力 muscular arm to move back and force, harvesting the 劲 energy and powering all of the infirmary which is in the middle of an 劲 energy shortage.