In the late 19th century, Billy the Kid and his gang of outlaws are on the run after the bloody Lincoln County War. Pursued relentlessly by the law, specifically by Pat Garrett, a former ally turned determined sheriff, the gang aims to escape to Mexico. Amidst their flight, they seek refuge, find moments of camaraderie, and reflect on their infamous past, all while confronting betrayals and internal conflicts. Their journey is marked by daring escapes, gunfights, and the constant shadow of their own notoriety as they try to outwit those who seek their capture or death.

The narrative delves into themes of loyalty, destiny, and the search for freedom against the backdrop of the American frontier's closing days. As they navigate through treacherous territories and face numerous foes, both external and internal, the gang’s bonds are tested. Each member is forced to come to terms with his own reasons for living on the edge of society, even as their infamous leader, Billy, driven by a mix of idealism and defiance, pushes them closer to the brink of legend. Their story is a poignant exploration of young lives caught in the crossfire of history, striving to carve out their own identities in an era that is rapidly changing around them.