Boy #19 Shinji Mimura uses his intellect to invent an escape plan.

Spoiler

His first plan is to hack into the government's computer and disable their collars, and then bomb the school. He is unsuccessful at hacking into the computer, since he discusses his plan with a fellow student, and the conversation is transmitted through his collar back to the teacher, who puts a stop to that plan. Shinji then attempts to bomb the building where the Program's staff is bunkered in, a plan which fails after a slight disruption that results in Shinji's Death.