S04E01 - The Past is Parent

S04E02 - Evidence of Things Not Seen

S04E03 - Tag, You're Me

S04E04 - All My Exes Live in Essex

S04E05 - The Games Underfoot

S04E06 - The Cost of Doing Business

S04E07 - Miss Taken

S04E08 - A Burden of Blood

S04E09 - Murder Ex Machina

S04E10 - Alma Matters

S04E11 - Down Where the Dead Delight

S04E12 - A View With a Room

S04E13 - A Study in Charlotte

S04E14 - Who Is That Masked Man?

S04E15 - Up to Heaven and Down to Hell

S04E16 - Hounded

S04E17 - You've Got Me, Who's Got You?

S04E18 - Ready or Not

S04E19 - All In

S04E20 - Art Imitates Art

S04E21 - Ain't Nothing Like the Real Thing

S04E22 - Turn It Upside Down

S04E23 - The Invisible Hand

S04E24 - A Difference in Kind