Mountain Mandark is the second part of the 8th episode of season 4 in Dexter's Laboratory, which first aired on September 5, 2003. In this episode, Mandark and his parents, Windbear and Oceanbird, go on a wilderness retreat where he gets in touch with nature.
Mandark is in his lab enjoying himself and how evil he is when he hears the horrid noises of his parents singing. This is the song they sing whenever they take their family out on a nature hike. Oceanbird and Windbear wanted to teach Mandark the goods about nature such as eating berries, digging up water, and lighting fires but Mandark just said how they'd all be better with science. Windbear has bad it with Mandark and he takes away all his evil gizmos and locks them in the van. Oceanbird and Windbear walk out in the wild and Mandark is behind them complaining. Then Mandark sees a shadowy figure of which he thinks is Dexter but really turns out to be a rabbit squirrel who terrifies his and makes him crash into a tree knocking him out. Mandark wakes up and finds out that Oceanbird and Windbear are gone and Mandark has to live on his own. Mandark lives out in the wild the way Oceanbird and Windbear taught him and he grows old in there. Mandark is okay with his new life in the woods until he finds civilization and goes back home running away from his home in the wild so happy to finally be getting back home from the wild.