E1 • Wren Boys: Part 1

1. 56 min
2. TV-14
3. CC

First part of a two-part story. The team are joined by new forensic scientist Eve as they investigate the death of a teenage boy who drowned in concrete.

E2 • Wren Boys: Part 2

1. 55 min
2. TV-14
3. CC

Concluding part. As the team move closer to the truth about the dead boy, his family and the nunnery, they uncover a deep family secret.

E3 • Deus Ex Machina: Part 1

1. 58 min
2. TV-MA
3. CC

First part of a two-part story. When a Sudanese presidential candidate goes on hunger strike, the team must race against time to find the Mahdi's skull.

E4 • Deus Ex Machina: Part 2

1. 57 min
2. TV-MA
3. CC

Concluding part. The team discover links between the case of the missing Sudanese skull and the murder of an Iraqi dissident in London.

E5 • The Fall: Part 1

1. 57 min
2. TV-14
3. CC

First part of a two-part story. The team investigates when a mummified, sexually-conjoined couple fall through a false ceiling during the renovation of a city bank.

E6 • The Fall: Part 2

1. 56 min
2. TV-14
3. CC

Concluding part. The team uncovers a vital secret about murder victim Catherine Keane. Will Boyd get to the truth before journalist Lisa Tobin?

E7 • Mask of Sanity: Part 1

1. 58 min
2. TV-14
3. CC

First part of a two-part story. The team investigates three murders committed over a six-year period after the victims' effects are sent to one of the widows.

E8 • Mask of Sanity: Part 2

1. 56 min
2. TV-14
3. CC

Concluding part. Another murder has been committed, but does the answer lie in events at the children's home many years previously?

E9 • Double Bind: Part 1

1. 57 min
2. TV-14
3. CC

The team is drawn back to a horrific double parricide from 1967 when a decomposed body is found buried in a Hampstead garden.

E10 • Double Bind: Part 2

1. 57 min
2. TV-14
3. CC

Boyd and the team investigate events at a hippy commune in 1967. Double murderer Daniel Lennon is still on the loose.

E11 • Yahrzeit: Part 1

1. 58 min
2. TV-14
3. CC

First part of a two-part story. The arrival of a package containing a Nazi dagger sparks an investigation into the unsolved murder of a Jewish girl in 1945.

E12 • Yahrzeit: Part 2

1. 59 min
2. TV-14
3. CC

Further horrific discoveries are made at the London house where the Nazi dagger was found.