1. Episode 1
DI Kip Glaspie leads the investigation into the unexplained shooting of Abdullah Asif, a pizza delivery driver and Syrian refugee.
Collateral — Season 1
2. Episode 2
DI Kip Glaspie knows that Abdullah's sisters hold the key to his death, but why is a sinister MI5 officer is doing his best to derail the investigation?
3. Episode 3
When the killers claim another victim, DI Kip Glaspie decides to break the rules to get to the bottom of the mystery.
4. Episode 4
As the net draws in, DI Kip Glaspie enters a dangerous power play with MI5. But is it too late to save everyone involved?