Arnold and his friends live in a close-knit neighborhood that is full of unique and vibrant characters. However, when Mr. Scheck comes to town with plans to bulldoze everything in the neighborhood and replace it with a giant mall, everyone is devastated. Arnold and his best friend Gerald refuse to let their community be destroyed and set out on a mission to save it.
In their quest to save the neighborhood, Arnold and Gerald meet a masked superhero known as "The Monkeyman." The Monkeyman agrees to help them in their fight against Mr. Scheck, and they team up to try and stop the mall-plex from being built.
However, Arnold and Gerald soon realize that they need more help in order to save their home. That's when they meet a mysterious deep-voiced stranger who has the power to uncover a crucial document that could be used to stop Mr. Scheck.
Throughout their adventure, Arnold and his friends must use all of their courage, ingenuity, and teamwork to stand up against Mr. Scheck and save their beloved neighborhood. Along the way, they learn the importance of community and the value of standing up for what you believe in.