Nina Hayes is a promising FBI agent from Baltimore who faces challenges due to her race and gender. She is initially met with skepticism by her peers, who view her as a diversity hire. However, she is determined to prove herself and is eventually transferred to Phoenix after a position opens there. Her mission is to take down the Saxton crime syndicate, and she sees Jim Ellis as a potential key to achieving this goal.

Jim Ellis is a skilled getaway driver for the Saxton crime syndicate in Phoenix. He is known for his cool demeanor and driving skills. Jim works closely with the Saxton family, particularly Royce, who is the heir to the syndicate. He is also haunted by the death of his brother, Joey, which Nina suspects might be connected to the Saxton family.

The 1970 Plymouth Duster is not just Jim Ellis's vehicle; it is a symbol of freedom and speed. It becomes a central element in the series, reflecting Jim's lifestyle and his ability to escape both physically and emotionally. The car is sleek, fast, and iconic, making it a character in its own right.

Nina Hayes tries to persuade Jim Ellis to cooperate by exploiting his emotional vulnerability, particularly regarding the death of his brother, Joey. She suspects that Joey's death might be linked to the Saxton family, which she believes could motivate Jim to become an informant. However, Jim initially resists her attempts, leading to a cat-and-mouse game between them.

Jim Ellis makes a deal with Mad Raul, a dangerous crime syndicate leader, after deciding to leave Arizona due to the pressure from Nina Hayes and the FBI. He signs a contract in his own blood, pledging allegiance to Mad Raul. This decision is driven by his need to escape the legal threats and find new employment, as he can no longer work for the Saxton family safely.