Digimon Tamers: Bousou Digimon Tokkyuu

Six months after the battle with the D-Reaper, the Tamers gather to celebrate Rika's birthday. Their reunion is interrupted when Locomon, a train Digimon, bursts into the real world and races uncontrollably along the rail network, creating a dangerous digital zone around itself.

As Takato and the others try to stop the runaway train, Parasimon reveals itself as the force behind the disturbance and begins opening the way for more Digimon to invade. Rika is drawn directly into the threat, forcing the Tamers and their partners into a fast-moving battle before the line between the two worlds is torn open again.