Mouch assembles vintage firetruck model for Chief. Gallo and Ritter help with complex build. Brett and Violet handle puzzling cases. Cindy's family worries over test results.
Mouch builds a classic firetruck model for the Deputy District Chief, but quickly needs some assistance from Gallo and Ritter. Brett and Violet encounter multiple victims with a strange set of symptoms. The results of Cindy's chemotherapy loom over the Herrmann family.