Digimon Xros Wars
World Travel for Kids Only! The Digimon Dream Train
S3 E13:
Tagiru's classmate, Kiichi, has begun riding on the locomotive Digimon, Locomon, and traveling to other countries every night. Eventually Kiichi and the other kids who spend all their time traveling with him start coming to school with very sleepy faces. Kiichi also starts to look thin and haggard. Worried, Tagiru and his friends decide to stop Kiichi from going on his trips. They start to bo...