Doraemon and Noby babysit a neighbor toddler named Sammy who doesn't seem to like either one of them. To pacify Sammy, Noby gives him a piece of Doraemon's Super-Duper Extreme Extra-Strength Candy, not realizing that it amplifies the user's strength by a million times, and the baby soon wears both of them out. Sammy ends up destroying the house, but also gives two burglars the terror of their lives.