Nickelodeon is bringing back the original “Hey Arnold” cast for the upcoming TV movie, which is titled “Hey Arnold!: The Jungle Movie.” The two-hour telepic will air in 2017.

“Hey Arnold! The Jungle Movie” picks up from where the original series left off in 2004 and will resolve unanswered questions and plotlines — including Arnold finally getting answers about the whereabouts of his missing parents.
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