When Marie Allen visits her sister, she makes a gruesome discovery: the 49-year-old is dead on the couch. Now, it's up to Dr. G to figure out if this was an accident or something sinister.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

A teen is eating breakfast when his dad starts stabbing himself. As the investigation unfolds, police begin to doubt the story. Dr. G must determine if this was a suicide or a murder.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Leo Guzman falls off a ladder while painting a house. At first, his death seems to be an open-and-shut case, but, as the autopsy unfolds, Dr. G believes there may be more to this case.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Authorities respond to a fire, only to find Carolyn Casey's body at the center of the blaze. With little evidence and no witnesses, Dr. G must find the cause of death to catch her killer.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Reed Baley is found unconscious the morning after his bachelor party. Now, it's up to Dr. G to determine if alcohol was to blame or if there was another cause of death.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

It's up to Dr. G, along with the National Transportation Safety Board, to piece together how and why a plane crashed, leaving the pilot dead.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

A train engineer panics when he spots a man lying on the tracks. He blows the whistle, but the train can't stop in time. It's up to Dr. G to piece together how Andy Santana died.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

It's up to Dr. G to determine if alcohol was to blame in a man's death or if there was a silent killer lurking in his body.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

A neighbor hears odd sounds coming from the next apartment. When police arrive, they find a man bruised and dead. When all signs point to foul play, it's up to Dr. G to find proof of murder.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Police make a grisly discovery: a woman's battered and dead body. With little evidence and no witnesses, Dr. G must identify the body and determine the cause of death to catch her killer.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.