Emma helps DI Addison identify a murder suspect with an ice-cold heart. The inspectors are due at the Mill, but will the team pass the test? Meanwhile, Valerie has a surprise discovery.

Jimmi is perplexed by a seemingly innocent young man who is desperate to be arrested. Can he unearth the man's true crime? It is Mrs Tembe's team-building day, and for once she encourages clowning around.