In Palomar City's District 10, Hex Spencer rises to the coveted rank of a Gatecrasher, joining the complex realm of freelance ambulance teams that the city despises and relies on. In a neighboring district, a successor, unaware of her destiny, emerges to fill the shoes of the once-feared Gator.

As Hex's path in this perilous career becomes clearer, her most trusted confidant unexpectedly transforms into a formidable threat, poised to dismantle all she's painstakingly built. Amid the high-stakes world of paramedics and covert politics, loyalties are tested, destinies intersect, and the fiery crucible of ambition ignites a maelstrom of betrayal and deception.