After catching wind of a feud brewing between Edon (Goran Bogdan) and his son Loric (Maxim Baldry), S20 launches a raid on their family business in hopes of extracting the location of the bioweapon from Loric, whose self-serving cooperation leads them to an exchange between Edon and jihadist brothers Zayef (Alec Secareanu) and Mahir (Bamshad Abedi-Amin). Meanwhile, wedding arrangements between the Demachi and Vironi families sour, Mac (Warren Brown) considers a career-changing offer from Coltrane (Jamie Bamber), and Wyatt (Daniel MacPherson) is tempted to compromise his professional integrity. Written by Jack Lothian; directed by Paul Wilmshurst.