The next stop for the 999 was the Planet of Tomorrow, a peaceful world whose inhabitants had no knowledge of space flight. The 999 and its passengers were to land in secrecy. A group of youths, led by Taro and Hanako, anticipated for its arrival. While the group only wanted to publicize the train's existence, Taro wanted to board the train. In doing so, Taro stole the train passes and spending money from Tetsuro and Maetel, as well as Tetsuro's clothes. In their plight Tetsuro and Maetel managed to find lodging in a small hostel (i.e., the pint sized room), where Tetsuro befriended the struggling comic-artist Adachi, who had been looking for an inspiration for his work. The episode ended with Taro offering Maetel's pass to Hanako, who refused it.
Ils arrivent sur la Planète du Futur, une planète où l'existence du 999 est tenue secrète. Là, le laissez-passer de Tetsuro est volé par un jeune garçon nommé Taro qui rêve de voyager dans l'espace. Tetsuro et Maetel cherchent un endroit où séjourner et finissent par se retrouver dans une auberge bon marché où ils rencontrent un aspirant dessinateur de bandes dessinées nommé Futoshi Adachi.
