A girl finds a Vital Bracelet, allowing her to become a tamer herself. Meanwhile, the newly evolved Bulkmon and his tamer go for a rematch against the rival tamer and his Greymon. Unfortunately, their fight is cut short when the girl accidentally summons a raid boss - BlackWarGreymon.
A raid battle starts with thousands of Hagurumons spawning in the City. A large amount of them combine together to become Machinedramon, whilst the rest act as Machinedramon's minions. Tamers from all over the World arrive at the raid battle and fight Machinedramon and the Hagurumon.