After finally making it through the Safari Zone, Ash and the others come across a long bridge they will be a shortcut to the next town. However, they need bikes to get across. They head to a pokemon center, where Nurse Joy allows them to borrow some bikes, if they take some medicine to the pokemon center across the bridge. After getting about halfway across the bridge, they run into a local gang that claims the bridge as their territory. Ash begins a battle with them, but when Officer Jenny shows up, they take off. It turns out that Jessie and James used to be part of the gang, and they decide to help them stop Ash and friends from crossing the bridge.