In the first half, Tommy and Chuckie help save a playground from "The Junk Food Kid", a candy loving, gum chewing bully. In the second half, Didi buys an antique French mirror, which Tommy and Chuckie think is a portal to dimension called "Mirrorland".
When Stu is hit on the head by his latest creation, he suffers amnesia and starts acting like a baby./When the Pickles have a garage sale to get rid of all of their extra junk, the rugrats lend a hand by gathering up all of the adults' belongings.
While Stu is testing a new electrical toy, he accidentally blacks out the entire city. The rugrats surmise that the light is trapped in the refrigerator./While running errands with Didi, Tommy and Chuckie mistake the "ATM" for the "M&M" machine.
Stu and Didi leave Tommy and Chuckie with Grandpa Lou for a night. While the kids prepare for an exciting night of videos and ice cream, Grandpa gets a call from his long lost love and invites her over.
At the Natural History Museum, Tommy and his pals see their first giant dinosaur skeleton. On the prowl for a souvenir for Spike who had to stay behind, Tommy leads the rugrats on an expedition to get a bone out of the big pile.
After watching the 1950's TV hero, Captain Blasto, the rugrats convince Chuckie that he can become a superhero when he dons a purple cape./When Spike begins to smell just a little too stinky, Didi hires a dog groomer to clean him up.
The families escape to a mountain cabin in search of "the perfect Christmas". Things get a little crazy when Tommy and Chuckie lay traps for Santa and Chuckie's dad dresses up as Santa and tries to squeeze his way down the chimney.
The Carmichaels, a new family move into the neighborhood. Tommy meets Susie, the youngest member of the family and helps her find her room; Stu buys a new toy that's needs some assembly, the babies have fun playing with the box it came in.