Wrth i'r ymchwiliad gyrraedd uchafbwynt, rhaid i'r Uwch Arolygydd Prosser wynebu hen elyn. As the investigation is brought to a close, Chief Superintendent Prosser confronts an old foe.
44 o funudau
Gweld holl benodau Y Gwyll
Drama dditectif gyda Richard Harrington, Mali Harries, Hannah Daniel ac Alex Harries
