Ian and the rest of the army watch the ceremony which Lucemon is elected president, then a dark aura comes around the zone and Lucemon absorbs DuskAngemon and Digivolves to Ultimate. Ian says he knew there was nothing good out of this guy. Then Lucemon summons a Shadedramon and make him into a sword. Ian then Digi-Xroses Flamemon, Pegasusmon, Nefertimon and Sparrowmon to combat. Then Lucemon exploseds and reformes, as a mega.
(Numbers indicate order of appearance. Bolded characters are fought by the protagonist(s), and italicized characters feature non-explicitly, e.g. voice, silhouette, image.)