Infinity Train - Book Four: Duet
1 - The Twin Tapes
Air Date: April 15, 2021
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.
2 - The Iceberg Car
Air Date: April 15, 2021
Waking up on the train together, Ryan and Min-Gi are met by Kez, whose mistake has left the boys in a predicament.
3 - The Old West Car
Air Date: April 15, 2021
Arriving in a Wild West town, Ryan, Min-Gi, and Kez attempt to escape the locals.
4 - The Pig Baby Car
Air Date: April 15, 2021
Ryan and Min-Gi are forced to satisfy Pig Baby with the perfect dessert.
5 - The Astro Queue Car
Air Date: April 15, 2021
With a growing rift forming between them, Ryan and Min-Gi attempt to convince a bouncer to let them enter the rave.
6 - The Party Car
Air Date: April 15, 2021
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.
7 - The Art Gallery Car
Air Date: April 15, 2021
The boys' disintegrating relationship finally comes to a head when they end up in a haunted art museum with seemingly no exit.
8 - The Mega Maze Car
Air Date: April 15, 2021
As the duo nears Kez's home, they are forced to contend both with all their enemies and their messy relationship.
9 - The Castle Car
Air Date: April 15, 2021
Having finally arrived at Kez's home, Ryan and Min-Gi learn of her biggest secret and regret.
10 - The Train to Nowhere
Air Date: April 15, 2021
Ryan and Min-Gi are forced to face the truth and a final challenge if they ever want to go home.