The third season of this riveting crime drama opens with a cataclysmic event which reverberates throughout the eight episodes. Fifty-five souls are lost to a terrible locomotive disaster, with the wreckage landing right in the lap of 'H' Division - on Leman Street itself. From the twisted debris of the crash emerge clues that uncover long hidden deceits. These crimes threaten not only to destroy Reid's iron grip on 'H' Division, but to unravel his...

Churches and synagogues are being burnt and desecrated in Whitechapel and Reid suspects the same hand behind the various attacks. Meanwhile, the all-too-brief domestic happiness that Sergeant Drake has enjoyed is disrupted by the arrival of a friend from his wife Bella's past.

It is Reid's first day back at H Division and the police force he once commanded is now under Inspector Drake's authority. Despite his initial anxiety, it soon becomes clear that Reid's investigative instinct is as sharp as ever.

One month has passed since Inspector Reid returned to H Division. Drake and Reid are once more in harmony but it's now Jackson's turn to feel the pressure as a murder has links to a man who aided Long Susan's escape from Newgate.

Just as it seems that Reid and Drake have found their working dynamic once more, they are forced to engage with a difficult murder case that threatens to open old wounds.

When a young man close to Drake's heart is discovered murdered, it exacerbates the considerable rift that has developed between Reid and Drake, and threatens to throw H Division as a whole into turmoil.