Zack is reunited with a friend of his that he hasn't seen in fifteen years.

A new character has arrived.

The NS defectors get their own story.

Kaela is annoyed with the Northern Errol Line.

Jack makes another appearance, revealing the importance of a fidget spinner.

Jack wants to celebrate 크리스마스 as quickly as possible.

Juliette is actually helpful for a change.

We finally see Taylor pull passenger trains.