Forced to confront the death of his daughter following a fatal encounter with drugs, ex-military soldier Andy becomes hell-bent on finding those responsible. With nothing to lose, a violent criminal underworld unravels in his wake.
| Actor | Role |
|---|---|
 Tip CullenAndy (Echo 1) | Andy (Echo 1) |
 Tom LeighSmudge (Echo 2) | Smudge (Echo 2) |
| LLuke SolomonSledge (Echo 3) | Sledge (Echo 3) |
 Steven BladesHarper (Echo 4) | Harper (Echo 4) |
| AAndy GatenbyTango 2 | Tango 2 |
 Kevin GoldingLucian | Lucian |
| FFranky LankesterTango X | Tango X |
| AAlex MontagnaniCallan | Callan |
 Will BowdenWhiskey 5 | Whiskey 5 |
| DDenver WhiteTango 4 | Tango 4 |
 Doireann May WhiteAva | Ava |
 Daniel DavidsCassius | Cassius |
| NNicholas ClarkeTango 1 | Tango 1 |
| KKarlina Grace-PasedaElaine | Elaine |
 Gemma Knight JonesJoanne (Therapist) | Joanne (Therapist) |
| SSaskia RoseRachel | Rachel |
 Lewis Raymond TaylorTango 6 | Tango 6 |
 Ryan NoireTango 3 | Tango 3 |
 Aaron MackenzieTango 3 | Tango 3 |