Indigo (Dean Daley-Jones) is a professional boxer, so he knows how to land the perfect punch; find the sweet spot. It's why he's good in the ring, and it's why he's just served a six-year sentence for killing a man in a street fight.

Aaron Davis's career in the force is on hold since an Aboriginal teenager died in police custody on his shift, but his life changes when he begins a relationship with a neighbour.