HBO Max 原创作品《无尽列车》（Infinity Train）第三季今夏独占配信决定，动画制作仍为卡通频道工作室（Cartoon Network Studios）。
※第二季已于当地时间 1 月 10 日于卡通频道（Cartoon Network）美国放送完毕。
In Book 3, Grace and Simon are the leaders of the Apex, an anarchic group of kids on a mysterious train. During one of their destructive missions, Grace and Simon get separated from the rest of the Apex and must find their way back. As the duo navigate through the myriad worlds of the train, they meet Hazel, an optimistic young girl, and Tuba, her gentle gorilla companion. Will Grace and Simon find new inspiration in Hazel’s innocence, or will the ways of the Apex recruit yet another aboard the train?