Answering an e-mail plea for help, the kids learn the secret of the
DigiWorld -- it's actually a computer program, and everything in it
(including the kids) are just data given form.
This knowledge makes Tai feel invulnerable -- his real body is safe
in the real world. Izzy isn't so sure this is true -- if they're
hurt in the digital world, are they sure they'll still be fine?
The kids find the source of the e-mail, Datamon, a robot who's been
held prisoner by Etemon for years.
The kids free Datamon, but he turns on them and kidnaps Sora and
Biyomon before fleeing. Tai starts to go after them, but he
hesitates when Izzy warns him that any damage he takes in the DigiWorld
will affect his real body.
Datamon escapes with Sora and Biyomon.