Kurt's isolated existence with Tommy is shattered when Elizabeth arrives, bloodied and on the run. She carries an urgent plan to restore Earth's oxygen by injecting a miracle enzyme into surviving coral.
The trio embarks on a perilous journey to Mile 0 in the Florida Keys, relentlessly pursued by Prince's forces. Betrayals, dwindling oxygen tanks, and brutal clashes push them to the brink.
Final standoff at the reef: seed the coral before Prince crushes humanity's last hope. Kurt, Tommy, and Elizabeth must risk everything for Earth's chance to breathe again.
Zero Mile unfolds in a world gasping for air.