s Doctors Rhodes and Zanetti race against the clock to save a fallen member of Firehouse 51, the case of a woman clinging to life is discovered to be similar to those of other patients.
Laurie Holden Dr. Hannah Tramble
Nick Gehlfuss Dr. Will Halstead
Yaya DaCosta Nurse April Sexton
S. Epatha Merkerson Sharon Goodwin
Oliver Platt Dr. Daniel Charles
Colin Donnell Dr. Connor Rhodes