Nick becomes involved in the mystery of Greta's critical illness. Dan gives Billy permission to invite Carolee on their excursion to the lake. Carolee is put off by Steve's frivolity in the face of Greta's illness. Matt becomes angry when Dr. Ennis from pathology appears to accept defeat with their inability to identify the infection plaguing Greta. Carolee doesn't immediately accept Billy's invitation. Nick inadvertently gives Matt a lead by mentioning dyes and stains.
—Skip Eastport