Complete story — includes the ending
The agency's British owners visit Sterling Cooper to reassign Lane to one of their India-based companies over the Independence Day weekend; Guy MacKendrick, Lane's replacement, is then introduced to the company. After tendering her resignation, Joan finds out that Greg's application for a medical residency in New York was rejected, and he drunkenly tells Joan she can't leave her job. When Joan reveals that it is not possible, Greg advises her to get another job. Don meets with Connie, who is revealed to be famous hotelier Conrad Hilton; Connie is impressed and tells Don he wants to do business with him. Sally is having trouble adjusting to the presence of Baby Gene, telling Don that she believes Baby Gene is the ghost of her grandfather. Don implores Betty to change their son's name, but Betty refuses, coldly stating that Sally will get over it. During a party to celebrate Joan's departure, Ken brings a riding lawnmower into the office; Lois tries to drive the lawnmower and accidentally runs over Guy's foot, mangling him. At the hospital, the agency's British owners announce that Guy has lost his foot, and that Lane will stay in New York for the time being.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Mad Men season 3. HTML formatting and reference markers removed. · Content license