A birthday lunch held in Gemma's honour leads to secrets being exposed, and a break for Martin comes from an unexpected source, as his illicit bond with Zoe deepens. DCs Martin Young and Stella Beckett put the prime suspect under surveillance when a primary school teacher goes missing in Manchester.

• Ed Whitmore
• Harry Bradbeer

• Phill Langhorne
• Erin Shanagher
• Fehinti Balogun