All Aboard

All Aboard is the first episode of Digimon Frontier.

Summary
After Takuya Kanbara receives instructions from a cell phone to take a ride on a train unlike our world's, he ends up in the Digital World with three other kids: J. P. Shibayama, Zoe Orimoto, and Tommy Himi, along with two odd Digimon Bokomon and Neemon. Cerberumon attacks at the train station, and Takuya uses the Human Spirit of Flame, Agunimon, to defeat him.