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Infinity Train

Book Four: Duet · 10 episodes · Apr 15, 2021

Childhood friends with opposing personalities, Mingi and Ryan, dream of becoming rock stars but find themselves on the Infinity Train. They explore the locomotive's inner puzzles — and their own relationship — in order to return home, together.

  1. Infinity Train season 4 episode 1 still

    Episode 1

    The Twin Tapes

    Apr 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. Infinity Train season 4 episode 2 still

    Episode 2

    The Iceberg Car

    Apr 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. Infinity Train season 4 episode 3 still

    Episode 3

    The Old West Car

    Apr 15, 2021

    Arriving in a Wild West town, Ryan, Min-Gi, and Kez attempt to escape the locals.

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    Episode 4

    The Pig Baby Car

    Apr 15, 2021

    Ryan and Min-Gi are forced to satisfy Pig Baby with the perfect dessert.

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    Episode 5

    The Astro Queue Car

    Apr 15, 2021

    With a growing rift forming between them, Ryan and Min-Gi attempt to convince a bouncer to let them enter the rave.

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    Episode 6

    The Party Car

    Apr 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. Infinity Train season 4 episode 7 still

    Episode 7

    The Art Gallery Car

    Apr 15, 2021

    The boys' disintegrating relationship finally comes to a head when they end up in a haunted art museum with seemingly no exit.

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    Episode 8

    The Mega Maze Car

    Apr 15, 2021

    As the duo nears Kez's home, they are forced to contend both with all their enemies and their messy relationship.

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    Episode 9

    The Castle Car

    Apr 15, 2021

    Having finally arrived at Kez's home, Ryan and Min-Gi learn of her biggest secret and regret.

  10. Infinity Train season 4 episode 10 still

    Episode 10

    The Train to Nowhere

    Apr 15, 2021

    Ryan and Min-Gi are forced to face the truth and a final challenge if they ever want to go home.