Episode Title:
Dr. Doof's Lab/Journey to the Center of the Chibiverse/The Perfect Gift
Episode Description:
Kim Possible, Marco Diaz, Kiff Chatterley and Cricket Green are invited by Dr. Doofenshmirtz for a tour of his lab with a special prize at the end of the tour. After Kim destroys Dr. Doof's inventions, Kiff plays with Doof's city model, and Marco leads Doof's "Doofaloofas" in a strike, they are escorted out of the lab. When Cricket remains the final person left, he wins the prize: being Doof's assistant. Cricket decides to make tiny clones of himself, similar to Doof's Doofaloofas, to help out but they end up destroying the entire lab.
It's Pogo Stick Day in the Chibiverse where chibis jump on pogo sticks together. However, when they all jump at the same time, this causes a "Chibiquake" and Remy Remington falls down a crevasse. Phineas Flynn and Ferb Fletcher build a drill machine to dive down the Chibiverse and rescue Remy. Meanwhile, Remy discovers that multiple other chibis, who are known as the "Underchibis", have also fallen down the crevasse. Phineas and Ferb along with Star Butterfly and Vasquez arrive and return Remy and the Underchibis back to the mainland.
At the Chibiverse Magic Mansion, Luz Noceda and Amity Blight celebrate their one-year "Chibiversary," but Luz hasn't gotten Amity anything yet. Helen tells her about the legendary "Perfect Gift" which is guarded by traps on Chibi Rock. She is later forced to have Dewey Duck accompany her, as he knows the way. The two land on Chibi Rock and pass through many challenges. When they make it, Luz discovers that Amity was also trying to get the Perfect Gift. They open the Perfect Gift together to find a mirror that shows them their past memories.
