First Look: Unearthing Trouble On Elementary

Jon Michael Hill as Detective Marcus Bell, Jonny Lee Miller as Sherlock Holmes, and Lucy Liu as Dr. Joan Watson

Jon Michael Hill as Detective Marcus Bell, Jonny Lee Miller as Sherlock Holmes, and Lucy Liu as Dr. Joan Watson

When an archeologist is murdered, Holmes and Watson believe the man may have been killed for what he discovered during his last excavation in a local landfill. Also, Sherlock's relationship with Alfredo, his friend and former sobriety sponsor, hits a rough patch.

"The Games Underfoot" (Season 4, Episode 6)
Lucy Liu as Dr. Joan Watson

Lucy Liu as Dr. Joan Watson

"The Games Underfoot" (Season 4, Episode 6)
Lucy Liu as Dr. Joan Watson and Jonny Lee Miller as Sherlock Holmes

Lucy Liu as Dr. Joan Watson and Jonny Lee Miller as Sherlock Holmes

"The Games Underfoot" (Season 4, Episode 6)
Jonny Lee Miller as Sherlock Holmes

Jonny Lee Miller as Sherlock Holmes

"The Games Underfoot" (Season 4, Episode 6)
Aidan Quinn as Captain Thomas Gregson

Aidan Quinn as Captain Thomas Gregson

"The Games Underfoot" (Season 4, Episode 6)
Ato Essandoh as Alfredo Llamosa

Ato Essandoh as Alfredo Llamosa

"The Games Underfoot" (Season 4, Episode 6)
Jonny Lee Miller as Sherlock Holmes

Jonny Lee Miller as Sherlock Holmes

"The Games Underfoot" (Season 4, Episode 6)
Ato Essandoh as Alfredo Llamosa

Ato Essandoh as Alfredo Llamosa

"The Games Underfoot" (Season 4, Episode 6)
Lucy Liu as Dr. Joan Watson

Lucy Liu as Dr. Joan Watson

"The Games Underfoot" (Season 4, Episode 6)
Lucy Liu as Dr. Joan Watson and Jonny Lee Miller as Sherlock Holmes

Lucy Liu as Dr. Joan Watson and Jonny Lee Miller as Sherlock Holmes

"The Games Underfoot" (Season 4, Episode 6)
Jon Michael Hill as Detective Marcus Bell

Jon Michael Hill as Detective Marcus Bell

"The Games Underfoot" (Season 4, Episode 6)
Lucy Liu as Dr. Joan Watson and Jon Michael Hill as Detective Marcus Bell

Lucy Liu as Dr. Joan Watson and Jon Michael Hill as Detective Marcus Bell

"The Games Underfoot" (Season 4, Episode 6)
Jonny Lee Miller as Sherlock Holmes, Lucy Liu as Dr. Joan Watson, Aidan Quinn as Captain Thomas Gregson, and Jon Michael Hill as Detective Marcus Bell

Jonny Lee Miller as Sherlock Holmes, Lucy Liu as Dr. Joan Watson, Aidan Quinn as Captain Thomas Gregson, and Jon Michael Hill as Detective Marcus Bell

"The Games Underfoot" (Season 4, Episode 6)
Jonny Lee Miller as Sherlock Holmes

Jonny Lee Miller as Sherlock Holmes

"The Games Underfoot" (Season 4, Episode 6)
Jonny Lee Miller as Sherlock Holmes

Jonny Lee Miller as Sherlock Holmes

"The Games Underfoot" (Season 4, Episode 6)