Photo Flash: ELEMENTARY's 'Possibility Two,' Airing 2/21

On ELEMENTARY's upcoming episode, titled "Possibility Two," Sherlock (Jonny Lee Miller) and Gregson (Aidan Quinn) investigate a case involving a wealthy philanthropist who believes his incurable illness was given to him on purpose on Thursday, Feb. 21 on CBS.

Check out a first look below!

Photos by: Jojo Whilden/CBS

Jonny Lee Miller

Jonny Lee Miller, Lucy Liu

Jonny Lee Miller, Lucy Liu

Jonny Lee Miller

Aidan Quinn, Lucy Liu, Jonny Lee Miller, Jon Michael Hill

Aidan Quinn, Jonny Lee Miller

Jonny Lee Miller

Jonny Lee Miller

Jonny Lee Miller, Lucy Liu, Aidan Quinn