Seventeen-year-old Mae Cortez was a rising star—until her entire team was killed in a mission gone wrong. Broken and guarded, she's forced back into the field when Chief Carter assigns her to Squad 56, a team she doesn't trust—and that doesn't trust her. Chase, the team leader, fights the decision, but the chief gives no choice.

Their mission? Stop a villain known only as the Timekeeper from freezing the world in time.

To do it, Mae must go deep undercover—posing as the girlfriend of Danny, the Timekeeper's son—to get close enough to uncover his father's plans.

But danger isn't just on the outside. Tensions rise within the team, and Mae finds herself drawn to Brian, whose quiet strength begins to melt her icy defenses. As her loyalties are tested, her heart pulled in unexpected directions, Mae must choose between duty, trust, and love... before time runs out.