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.
Don't you believe your dad?
Glaubst du deinem Vater etwa nicht?
Tu ne crois pas ton vieux père ?
Non credi a tuo padre?
Não acredita no seu pai?
Не веришь своему отцу?