Picking up where Hey Arnold! (1994) left off, this tells the story of what happened to Arnold's parents.

Starring:

Mason Vale Cotton, Benjamin Flores Jr., Francesca Marie Smith, Anndi McAfee, Dan Castellaneta, Antoinette Stella, Tress MacNeille, Justin Shenkarow, Olivia Hack, Gavin Lewis, Carlos Alazraqui, Aiden Lewandowski, Danielle Judovits, Jet Jurgensmeyer, Laya DeLeon Hayes

Genre:

Animation, Adventure, Comedy, Family