Robyn Coffin

Cruz hunts for the identity of an unknown ally. Mouch takes steps to help a friend. Vasquez must make a difficult choice.

Firehouse 51 must band together after a devastating fire catches them off guard. Vasquez continues his quest for answers.

Mon Amour. Firehouse 51 works to regroup after a tragedy strikes in the Series Premiere.

Malignant. Rhodes and Zanetti race to save a member of Firehouse 51; April's brother struggles during his first day at the hospital; a woman saved from a burning building leads to a bigger mystery.

One Minute. Chief Boden faces allegations after the death of a homeless man in a warehouse fire.

Hanging On. Voight's harassment towards Lieutenant Casey escalates.