A father in a Texas border town starts trafficking drugs to pay for his son’s cancer treatment.

For three US Border Patrol agents, the contents of one car reveal an insidious plot within their own ranks. The next 24 hours may cost them their lives.

Sinaloa hitchhikes into Texas to meet Merle, her half-sister by way of their dead country musician father. As the two get to know each other, Sinaloa’s chaotic influence starts to…