The Sound of Music
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At lunch together, Shay and Severide discuss their upcoming move and Renee's baby. Shay questions the due date, not convinced that the baby's his, but Severide dismisses her as just jealous. Later, the firemen descend on a burning two-story house that explodes into an inferno. A collapse sends Severide to the basement and a daring rescue saves his life. But outside the building, he notes the address - 1751. His badge number...