Regie : Julia Ford, Mit : Adeel Akhtar, Nathalie Armin, Michael Socha,

As Southgate builds his case against Justin, attention turns to the D4 police chat group. With phones wiped and Justin's fellow officers saying nothing, D4 could hold the key evidence. Meanwhile, unable to sleep, Sam embarrasses himself at work. Can Southgate crack D4 and use Sam's lapse in focus to secure a charge?