A girl wakes up on a self-driving bus. She has no memory of how she got there or who she is. Her nametag reads CECILY. The six other people on the bus are just like her: no memories, only nametags. There's a screen on each seatback that gives them instructions. A series of tests begin, with simulations projected onto the front window of the bus. The passengers must each choose an outcome; majority wins. But as the testing progresses, deadly secrets are revealed, and the stakes get higher and higher. Soon Cecily is no longer just fighting for her freedom - she's fighting for her life.