"Central International School's annual lock-in is legendary. Bonds are made. Contests are fought. Stories are forged that will be passed down from student to student for years to come. This year's lock-in begins normally enough. Then a group of students led by Marisa Cuevas stage an ecoprotest and chain themselves to the doors, vowing to keep everyone trapped inside until their list of demands is met. Some students rally to their cause -- but others...