Its been out in Australia for a couple years. Series 3 just finished a few months ago in the land down under. 3 series of 6 episodes each.
Two strangers, Lola and Chelsea, are waiting at a suburban bus stop before dawn. A car crashes in front of them, and two masked man arrive and shoot the driver dead. Lola struggles with the masked attacker the gun goes off, killing him. The other man is unmasked and he takes them both hostage. They escape but are caught up in a larger criminal conspiracy, and go on the run across Australia in a vehicle filled with cash. They are chased by criminals and corrupt police and can only trust each other.