An emergency announcement orders Solmere Airport evacuated after a highly dangerous explosive device is found in the terminal with a twenty-five minute countdown. Security flags the bomb as a Cipher Corps upgrade and warns that Mr. Campbell, the nation's top AI expert, is at risk. The flight crew is told to keep circling while staff wait for Ms. Langley—whose presence would secure Mr. Campbell's plane—rushing back but stalled in traffic thirty minutes away. Inside passengers scramble and staff try to evacuate; with the countdown ticking and Langley delayed, the airport's window to prevent disaster remains unresolved.