Students of a certain University Zhenya Shlyakhtich and Lyuska Ardova from our time find themselves on the Caribbean islands of the late 17th century. Posing as young men, they are hired as cabin boys on a freebooter ship under the command of Captain Blood. An incredible coincidence of circumstances and personal courage, reaching the point of arrogance, allow the two of them to capture an enemy Spanish ship and establish themselves in Blood’s squadron as commanders of this ship. Fate brings surprises to friends - battles, adventures, and, of course, love. Which greatly complicates the already difficult life of a pirate...