London police detectives Cassie Stuart and Sunny Khan investigate historic cold cases involving missing persons, murder and long-hidden secrets.
 | Season 1 Episode 1 Episode 1 Air Date: 2015-10-08 Duration: 60 min |
 | Season 1 Episode 2 Episode 2 Air Date: 2015-10-15 Duration: 45 min |
 | Season 1 Episode 3 Episode 3 Air Date: 2015-10-22 Duration: 45 min |
 | Season 1 Episode 4 Episode 4 Air Date: 2015-10-29 Duration: 45 min |
 | Season 1 Episode 5 Episode 5 Air Date: 2015-11-05 Duration: 45 min |
 | Season 1 Episode 6 Episode 6 Air Date: 2015-11-12 Duration: 45 min |
 | Season 2 Episode 1 Episode 1 Air Date: 2017-01-05 Duration: 60 min |
 | Season 2 Episode 2 Episode 2 Air Date: 2017-01-12 Duration: 60 min |
 | Season 2 Episode 3 Episode 3 Air Date: 2017-01-19 Duration: 60 min |
 | Season 2 Episode 4 Episode 4 Air Date: 2017-01-26 Duration: 60 min |
 | Season 2 Episode 5 Episode 5 Air Date: 2017-02-02 Duration: 60 min |
 | Season 2 Episode 6 Episode 6 Air Date: 2017-02-09 Duration: 60 min |
 | Season 3 Episode 1 Episode 1 Air Date: 2018-07-15 Duration: 60 min |
 | Season 3 Episode 2 Episode 2 Air Date: 2018-07-22 Duration: 60 min |
 | Season 3 Episode 3 Episode 3 Air Date: 2018-07-29 Duration: 60 min |
 | Season 3 Episode 4 Episode 4 Air Date: 2018-08-05 Duration: 60 min |
 | Season 3 Episode 5 Episode 5 Air Date: 2018-08-12 Duration: 65 min |
 | Season 3 Episode 6 Episode 6 Air Date: 2018-08-19 Duration: 60 min |
 | Season 4 Episode 1 Episode 1 Air Date: 2021-02-22 Duration: 60 min |
 | Season 4 Episode 2 Episode 2 Air Date: 2021-03-01 Duration: 60 min |
 | Season 4 Episode 3 Episode 3 Air Date: 2021-03-09 Duration: 60 min |
 | Season 4 Episode 4 Episode 4 Air Date: 2021-03-15 Duration: 60 min |
 | Season 4 Episode 5 Episode 5 Air Date: 2021-03-22 Duration: 60 min |
 | Season 4 Episode 6 Episode 6 Air Date: 2021-03-29 Duration: 60 min |
