Third Watch (1999)

S2E14 A Rock and a Hard Place

Faith, Bosco, Carlos, and an injured Doc find themselves stuck in a deserted tunnel, unable to contact Central through their radios. As they wait during a prolonged quiet spell between emergencies, the firefighters start to indulge in some playful antics. Meanwhile, when the C.O. struggles to reach Bosco on the radio, Sully steps in to provide an explanation for his absence.