Set in 17th-century France, the novel follows the adventures of a young man from Gascony named d'Artagnan who travels to Paris to join the King's Musketeers. He quickly befriends three of the most formidable musketeers of the age—Athos, Porthos, and Aramis—and together they become embroiled in the political intrigues of the royal court. As they seek to protect the honor of the Queen against the schemes of the powerful Cardinal Richelieu and the treacherous Milady de Winter, their exploits take them across Europe, and they embody the motto "All for one, one for all." Their camaraderie, bravery, and pursuit of justice make their story a timeless tale of adventure and heroism.

The 4658th greatest book of all time