Doc - Season 4 - Eps 20: The Great Wall
Clint treats a young boy for exhaustion but learns that the boy wants to be just like his father. The young man has trouble meeting his father 's expectations. Clint learns that his patient has Dyslexia and ends up in the hospital after taking some pills. Clint learns that his patient was taking pills to help him think better. His father decides to send his son back to China because he is slower then most people with Dyslexia. Derek is jealous that his wife spends more time with Dan who takes his daughter to modeling shoots. Derek is worried about the crash Dan seems to have on Nellie. When Derek 's wife tries to explain that they are nothing more than friends Derek doesn't by the explanation.
About Doc

Title: Doc
First Air Date: 2001-03-11
Last Air Date: 2004-11-28
Status: Ended
Rating: 7.4/10 (from 14 votes)
Language: EN
Seasons: 5
Total Episodes: 88
Network: Pax TV
Genres: Drama, Family
Production Companies: Pebblehut Productions
Synopsis
Doc is a medical drama/family drama with strong Christian undertones starring Billy Ray Cyrus as Dr. Clint "Doc" Cassidy, a Montana doctor who takes a job in a New York City medical clinic. It ran from March 11, 2001 to November 28, 2004 on PAX. Although set in New York City, all the episodes were shot in and around Toronto, Ontario, Canada.
Cast

Billy Ray Cyrus
Dr. Clint 'Doc' Cassidy

Tyler Posey
Raul Garcia

Derek McGrath

Ron Lea

Ruth Marshall

Andrea C. Robinson

Tracy Shreve

Richard Leacock

Paula Boudreau

Malin Åkerman
Maddy Dodge