Stu and Didi strive to make Tommy's first birthday a memorable one. They did, but under the wrong circumstances. Meanwhile Tommy wants to eat dog food so he can be just like Spike, eventually selling the other Rugrats on the idea.

Stu and Didi ended up taking Tommy to an important dinner at "Chez Ennui" with Mr. Mucklehoney (president of Mucklehoney Industries, a toy company), since Tiffany the babysitter (via telephone) and Grandpa have different plans (the babysitter's OTHER goldfish died and Grandpa was going bowling with a friend of his named Louise). Tommy, however, has plans of his own, and proceeds to get loose in the resturant kitchen, causing absolute chaos.

Betty tells the story of how Phil and Lil got placed in a diaper commercial where the twins preferred exploring and destroying the set rather than sticking to the script.

Being mistaken for the son of the millionaire Ronald Thump, Tommy is kidnapped by some thugs named Bob and Mike. But the kidnappers soon find out that it was more trouble than it was worth when Tommy begins flushing their stolen loot down the toilet.

Bored at home, the grown-ups decide to take the Rugrats to see "Reptar On Ice" - but when they find Reptar's baby, the Rugrats decide to be part of the act.