Infinity Train: Book Four Review: Last Stop The final season of Infinity Train is sure to be divisive. Not because it’s bad, mind you, but because it is very much not a conclusion. The creator of the show, Owen Dennis, has been open about the fact that there were rough ideas for several further seasons, and it shows in the construction of Book Four. It’s a continuation and expansion of what came before, but much like the name of the show, the possibilities still seem endless when it comes to a close. And the fact that we know that this is it, despite the narrative, might leave some a bit sour.