The MHU are sent to Edinburgh to investigate the death of a recently released prisoner whose body is pulled out of the Forth River, imprisoned in a dog cage.
Quest roles:
Ukweli Roach(DS Tyrone Clarke), Taylor Goodwin(Femi Talla), Varada Sethu(DC Harper Weston), Billy Mack(Bruce Kerr), Ryan Bown(Andros Bakas), Steven Duffy(Billy Gleeson), Laura Ferries(Briony Craig), Nick Walker(Comedy MC), Cora Bissett(Astrid McAndrews), Mya Milne(Bess McAndrews), Hannah Collins(Valeria Callo), Kimberley Mandindo(Amara Keita)