One day, Roseluck ventures into the Everfree Forest to gather some of the sap that some of the trees contain. When things take a turn for the worse, she ends up taking refuge in a cave deep in the forest. When she wakes up the next morning though, the forest has changed, and as she finally finds her way out of it, she finds that she's not in Equestria anymore. As she tries to find her way back home she will face many trials and complications, but also make some new friends along the way.