Once great friends, Ryan and Min-Gi's relationship slowly dissolves over the course of years of disgruntlement, culminating with their reunion in the restaurant.
Waking up on the train together, Ryan and Min-Gi are met by Kez, whose mistake has left the boys in a predicament.
Arriving in a Wild West town, Ryan, Min-Gi, and Kez attempt to escape the locals.
Tulip, Atticus, and One-One enter a crystal forest car and find the exit door high up on the side of a mountain. A crystal man appears and non-verbally communicates with them, revealing that in order to get to the door, they apparently need to sing an emotional song to a stone so that a staircase will appear. Atticus and One-One attempt to activate it, but their ways of singing are not effective. Tulip sings several emotional songs, but none of them work. Tulip builds a ladder to the door out of
With a growing rift forming between them, Ryan and Min-Gi attempt to convince a bouncer to let them enter the rave.
With their instruments back, Ryan and Min-Gi have to play their first show since they were kids, but it's no easy emotional feat.
The boys' disintegrating relationship finally comes to a head when they end up in a haunted art museum with seemingly no exit.
As the duo nears Kez's home, they are forced to contend both with all their enemies and their messy relationship.
Having finally arrived at Kez's home, Ryan and Min-Gi learn of her biggest secret and regret.
Ryan and Min-Gi are forced to face the truth and a final challenge if they ever want to go home.