In order to find the truth about what happened, Tooru leads his father away from the group as they sneak into the lab.  But his father finds out what he's doing and sets an ambush for them.
Everyone, promise me before we say goodbye.
Leute, versprecht mir eines,
bevor wir uns verabschieden.
Prométanme algo antes de despedirnos.
Prometedme algo antes de despedirnos.
Faites-moi tous une promesse,
avant qu’on se sépare.
Ragazzi, voglio una promessa
 da tutti voi prima di andarmene.
Pessoal, me prometam
antes de dizer adeus.
Ребята, пообещайте мне кое-что.