the evil dr. red leaped over large loops of giant roots like he was in a demented environmentalist 's version of the hurdles , stumbling more than once , only to get right back up again and keep running -- -- black belt snapped her whip at mutants that got too close as she dragged doctor rowenna along -- -- superkid performed amazing midair kicks to clear their path as he and his friends continued their sprint -- -- doctor red fought desperately for breath as he tried to maintain focus on the light at the end of the plant-constructed tunnel -- -- derrick began to stumble , feeling weak , out of breath -- -- black belt whipped dr. doublin into her arms and sprinted for all she was worth -- -- the leaves seemed to be closing in on red as he ran faster for the light -- -- the howling of the plant beasts was building , but black belt was quickly catching up to the three kids -- -- derrick suddenly tripped and stumbled forward , wheeling his arms in frantic circles -- -- dr. red , so close to the light of freedom , shot himself faster -- -- black belt caught up and tried to pass around the kids -- -- derrick caught the hem of her blouse as he fell -- -- superkid tripped over derrick 's flying leg -- -- darrin veered away to avoid the accident but tripped over his untied shoelace -- -- the mad scientist leaped through the shrinking hole -- -- and they all crashed into each other and fell in a jumbled heap .