After Twilight Sparkle defeats the Chimera and the Mane-iac, she proceeds to the Tree of Harmony where she is met by Omega Brony and Tirek. The alicorn princess must use her rainbow power to defeat both of them, but it is not going to be easy because Omega Brony has rainbow power of the Mane 6. The plunder vines are growing fast in the Everfree Forest and Ponyville and Celestia gathers the Mane 5 to check if Twilight is ok.