Earth has survived catastrophic solar winds under the protection of the Grid, its planetary defense shield.
Kim Sae Ha, a Bureau employee, encounters a murderer. Jung Sae Byeok, a detective, is dispatched to arrest the murderer. While in pursuit of the fugitive, she witnesses an unbelievable phenomenon: the founder of the Grid – a ghost from the past – has reappeared after 24 years. But why is she abetting the fugitive?
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