Rookie Cops follows the lives of ambitious students at the elite Korean National Police University. The story centers on Wi Seung-hyun, a top-tier student who follows in his father's footsteps, and Go Eun-gang, a spirited and unpredictable student who enters the academy after a series of unexpected events. Together with their diverse group of classmates, they navigate the rigorous training, strict hierarchy, and personal challenges of life at the academy. As they transition from naive recruits to capable officers, the group faces internal conflicts, budding romances, and the harsh realities of the justice system. The series explores themes of friendship, integrity, and the pursuit of dreams, showcasing how these young individuals grow through their shared struggles and triumphs while striving to become the future of the police force.