Stranded for the night in an old ice fishing shack, Frasier confronts his father's inability to say "I love you" to his sons.
The BAU team searches for a serial killer along the Appalachian Trail in rural Virginia.
Sabrina learns she has to solve the family secret before she can use her Witches License.
Greene accompanies Ross to California to help Ross identify his father's body and retrieve his effects. The death of Ross' father prompts Greene to visit his parents in San Diego, whom he hasn't seen in years.
Fort Leavenworth's prison infirmary has a medical emergency on its hands.
