Tomalin's fictional podcast covers the decoding of a message from outer space received 70 years ago.

Over the course of 8 weeks, listeners follow a team of top cryptologists as they attempt to decipher, decode, and understand the alien message.

The Message met SETI’s Standards For Intelligent Extraterrestrial Life (repetition, spectral width, extrasolar origin, metadata, and Terran elimination) by a team of codebreakers led by cryptographer, Lewis Krell.

[citation needed] After hearing the transmission while stationed at Hypo in Hawaii, Officer Marvin Weller reported to his unit.

Listening to the transmission puts people at risk of Pulmonary Anomaly 1, which causes the individual to experience difficulty breathing that worsens until they fall into a coma and eventually die.

Having recently contracted PA1, Ty volunteers to endure a near-death experience so they can receive the complete message in hopes of discovering a cure.