Watch Robot Trains Season 1 Episode 23 Online
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- COUNTRIES: South Korea
- Subtitles: 한국어/조선말
While Kay and his friends are searching for the virus inside Duke's memories, they find Duke's memory of the day before the opening ceremony of the Intercontinental Railroad, where a virus infected Duke's system and turned him evil. They now know that Duke was a victim of the virus. Fighting the mutant virus monsters, Kay and the friends get closer to the central part of Duke's engine.