You play as Alexei Morozov, a young intern left alone to oversee the Chernov Nuclear Plant for the night shift. It was supposed to be quiet, routine, until 02:17 a.m. When every alarm in the facility erupted and the monitors began flashing red. Now with ten minutes on the clock, you must prevent a nuclear disaster, save the city of Kurchatov, and protect thousands of lives. Your only companion is a cold, automated helpline voice. Your only hope is deciphering its cryptic instructions and solving the puzzles before time runs out.