Nickelodeon announced Tuesday the greenlighting of a live-action TV movie inspired by its game show Legends of the Hidden Temple.

Drawing from the original game show’s premise of kids competing to retrieve artifacts from a mysterious Mayan temple, the new action-adventure TV movie version will follow three siblings who embark on a high-stakes, life-or-death mission.

The Legends of the Hidden Temple TV movie will star Nick’s own Isabela Moner (100 Things To Do Before High School) and is slated to begin production in March.

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Additionally, Nickelodeon has officially given the greenlight to a two-part animated Hey Arnold! TV movie, written and executive produced by the series’ original creator Craig Bartlett.

First announced in development late last year, the now-greenlit TV movie will pick up where the original series ended, resolving unanswered questions and plotlines, including Arnold finally getting answers about the whereabouts of his missing parents.

Produced by Nickelodeon Animation Studios in Burbank, the two hour-long TV movies will debut in 2017.

Nickelodeon, now in its 36th year, is a leading entertainment brand for kids.