The sailors staged a mutiny and took control of the ship.
Origin of MUTINY
mutine to rebel, from Middle French (se) mutiner, from mutin mutinous, from meute revolt, from Vulgar Latin *movita, from feminine of movitus, alteration of Latin motus, past participle of movēre to move
Any concerted resistance to lawful military authority. Mutiny was formerly regarded as a most serious offense, especially aboard ships at sea. Wide disciplinary powers were given the commanding officer, including the power to inflict capital punishment without a court-martial. With the development of radio communications, the threat diminished and harsh punishment was prohibited in the absence of a court-martial.