Mark worries that his sleepwalking brother may be guilty of murder.

A fiendish med student sells prescription pads to a drug dealer and murders his partner when she becomes too needy. Mark plays Columbo to nail the murderer.

Mark's life becomes hectic when a look-alike gangster moves to LA and is caught up in a struggle for power.

Susan Gibney [ Maya ], David Marciano [ Eddie Michaels ], Michelle Stafford [ Trish ], Robert Bailey Jr. [ CJ ], Rusty Burns [ Betsy ], Richard Cody [ Kip ], George W. Hartmann [ Tommy ], William Newman [ Chester Chumley ], Kathleen Lloyd [ Emma Bornstein ], Kevin McNally [ Paramedic ], Aaron J. Meeks [ Dion ], John W. Johnston [ Rick ], Patricia Place [ Mrs. Palmer ], Daniel Zacapa [ Waiter ], Channon Roe [ Lucas (uncredited) ]

rc: Med Student Alex

Mark's life becomes hectic when a look-alike gangster moves to LA and is caught up in a struggle for power.

The whole gang, plus Alex Smith and Amanda's rascals, are invited to observe the shooting of an episode of "Frontier Dad", a family series about Wild West hero Dash, starring Carl Simpson.

Steve teams with a Naval Investigator when the apparent suicide of a military officer turns into a cold-blooded murder.

An old friend of med student Alex Martin is mixed up in the murder investigation of an L.A. 'madam'. Mark suspects Alex's friend may be more deeply involved in the madam's business than she lets on. Meanwhile, Madison Wesley is stalked by a homicidal killer who's recently undergone plastic surgery.

A body found on the beach turns out to be Jim, the hospital janitor, but when his twin brother Jeff shows up to identify the body, Mark and Steve become suspicious.

An abusive man who, along with four other people, was a contestant on a reality show is murdered while living in a house that is monitored 24 hours a day. After the killing, Mark enters the house as the man's replacement to see if he can uncover what happened.

Dr. Mark Sloan seeks the murderer who killed a med student, drained his blood, and stored him in the Community General morgue.

Dr. Mark Sloan investigates the apparent suicide of a gifted heart surgeon who was also a compulsive gambler.

A Tabloid-news paper reporter gets caught up in a murder investigation when one of her sources is stabbed to death on a dance floor.

When a filmmaker begins using Community General Hospital as the location for an eerie documentary, Dr. Sloan discovers it may be haunted.