After Stu sells an invention, he tells the kids that he is planning to buy them a swimming pool in the backyard. While digging up the yard, the construction crew unearths the Rugrats' old mechanical Reptar toy. The kids fondly remember it (all of them except for Dil), but decide to throw it away, until, during an electrical storm, they become convinced that they have angered Reptar. They ultimately decide to rescue the toy and realize that, although they are growing up, they cannot forget their past.
Tropes:
- Contrived Coincidence: The kids thought the phenomena happening in the house is because they throw Reptar away, such as the water becoming green and the electricity going out. But it was just a storm and the green sewage was because of the construction on the pool.
- Quite an appropriate throwback to the many contrived coincidences in the original series.
