Summer of Friends Part 2

Following the disappearance of her little brother Eddie, Rachel will have to entrust Agamya-Michiko, Bruce, Jennifer, David, and Jaret to embark with her in an adventure that will take them into Rachel's imaginary world. Meanwhile, Dr. Doofenshmirtz, wanted everything to be much simpler back then, so he creates a "Nostalginator", but someone else wanted to use it as well.