A New Darkness, Millenniumon

A New Darkness, Millenniumon (新たな闇ミレニアモン, Arata na Yami Mireniamon) is the thirty-first episode of Digimon Adventure:.

Summary
Taichi and Agumon finally surpassed their limit, and Agumon evolves into WarGreymon. This evolution awakens Lopmon’s long-lost memories. And Taichi learns about the new threat, Millenniumon.